Just got off the phone with them. There is a dry camp overflow area. If a person has stayed two weeks, and anyone is in overflow on the waiting list, they go out, and the waiter goes in. Some people switch back and forth all winter. If there is no one in rotation, then one can stay in place for an aditional two weeks.
Sounds like the place is pretty poular, but doesn't sound like we would be stranded. Can at least park in secure area, and dump tanks if needed. Of course I would rn the gen a bit, but it would be no hardship.