I have to stop and not grind my teeth when I hear businesses hiding behind "insurance" rules. Insurance companies are hotly competitive, it's not just a one size fits all. But enough of that...
Who is to say a dog is a mutt or a particular breed? If you aren't flashing around AKC papers, then you might own a mutt or Heinz 57 as far as the park is concerned. 8)
That being said... I recently went to a new vet for the first/last time. His receptionist REFUSED to accept that my doggy was of uncertain lineage and just a plain old mutt. She decided to create some "breed" and put that on his file. It kind of irritated me, because he is a mutt and I personally am against puppy mills, so I resented that she assigned him some lofty breed, as if I was in favor of shopping trendy puppy mills. All my life I've had cast offs and unwanted pets, what they now call "rescues" and they all appeared to be mixed breeds with a smattering of numerous varieties.
Now on to other things... I mostly travel the federal, state, county and city parks. Most that I have encountered are pretty broad minded about pets, and the natural environment where these tend to be located in mother nature often provides plenty of trails for activities for canine/human exercise. I am under the weird assumption that maybe these parks feel like their rangers have better things to do than to go around checking "breeds" of pets.
From what I've seen, you basically want to conduct yourself and your canine kids so that no one has any reason to complain about you/them.
By the way... I find that living a fulltime RV lifestyle with a dog means having assorted leashes for the various occasions... Sometimes a plain old short leash is good for walking around very busy areas, so the dog is closely heeled. Othertimes a 20 foot flexileash allows the dog to roam a bit more on nature trails. Mine will sometimes stop to sniff while I keep walking and when I am 19 feet ahead, he will run 40 feet to be 20 feet in front of me, to stop and sniff around again until I catch up. It's kind of funny at times. Other times, he happily walks right with me, matching my steps.
I also recently discovered that FINALLY they came out with a strong belt type flexi-leash that is only 6 feet max. Amazon has it here:
http://amzn.to/1K07b2n
This is heaven on earth for me and my pooch, especially around camps that restrict him to a 6 foot leash. This keeps him tangle free mostly and meets their 6 foot requirements.
Another thing I have taught my pet that makes us both plenty happy... We walk our garbage out at least once a day, often much more. I use the tiny grocery sacks in a small basket, so quick as one of those is full (and the kitchen one fills quickly!) I leash up the dog and walk him and the small bag of garbage to the dumpster. Once there, we loiter around the dumpster area to give him a chance to do his "business". Mostly he complies and I can toss the poop baggy away and not have to walk it around with me. Then we can continue our walk without the garbage and mostly without trotting around with a used poop baggy.
On another note... these dog owners that toss their used poop bags outside their rigs, sometime by their door, often by a tree near the road, with the "idea" that next time they go to the dump they will take the baggies with them, drive me crazy. It seems that some parks are very windy and suddenly used dog poop bags are blowing around the park onto other camping lots! Those dog owners seems to never go track down their used poop bags that blew out into the street or onto another lot.
My dog is small so I use plain old sandwich baggies for his poop, so when a black bag of poop blows onto my lot, I know it's not mine, but I clean it up anyhow.
I have found a super simple method for storing used poop baggies. I took one of those big coffee cans, put a lid on the top and bottom (I hate rusty rings) and then for fun, I decorated the coffee can with some of that festive duck tape (I think my current coffee can is purple). Anyhow, I keep this decorated coffee can outside at all my camp sites. Not only does it hold errant garbage but it holds used poop baggies, should I return from a walk with a used poop baggie. Next time I am gathering up garbage, I can empty the coffee can into the grocery baggy for going to the dump. If a big wind comes along, I don't have my neighbors treated to little bags of poop blowing around their camp site.
So please don't toss your used poop bags on your own lot, very often they end up scattered or blown away, and what's the use of scooping poop, if you are going to litter all over again?
On my dog's outdoor tethers, I often use a 2 section system. In other words, I made a rope with a snap-hook on the end, where I can attach a plain leash and then the dog. If he tangles up his tether like wrapping it around the outdoor table leg, I am able to unhook his leash from the thin rope, untangle the rope then hook him back up again. Needless to say, my pooch is pretty active, he tends to go full speed ahead when awake and drags his toys all over the camp lot while playing. Silly dog!
Speaking of leashes.... please stay away from the flexi leashes that use strings rather than belts. The strings are impossible to see, they tangle up easily if 2 dogs do the sniff-in-circles and those dreadful string type flexi leashes can slice a thigh or calf or ankle drawing blood!
Twice now I've had my leg painfully sliced open in a nanosecond by other people's flexi leashes who were using the cheap string type when their enthusiastic dog ran right past me, drawing blood. So please consider the extra expense of belt flexi leashes not the horrible string type ones.
More about that purple coffee can... I just looked back at my last campsite, where I snapped a pic after setting up. You can see the purple coffee can is sitting on the table. Besides the occasional used dog poop bag, I use that purple can for errant garbage. I like to clean up a campsite when I arrive. I pick up all the cig butts, the beer tops, the juice straws and all the crap left behind by the previous campers that maintenance failed to pick up. The purple coffee can is perfect for tossing in this garbage. Quick as I think my site is tidy, I see another bit of garbage, maybe a gum wrapper or something, I can keep tossing it in the coffee can. So this decorated coffee can is great as a little outdoor garbage can and the snap on lid, keeps it dry and prevents my garbage from blowing away to the next site.