I do know Texas is working real hard around the Austin area, between mile markers 371 down to the 144, tickets start at $100. Tennessee, Virginia, Georgia, and Maryland have been working real hard on this for several years, ticket prices vary by jurisdiction. Out west though one seems to be pretty safe, as long as you're at least 15 feet off the traveled section of the road. If you're there more than about 10 hours though, you're likely to get a ticket if the same cop sees you there during two shifts.