If people haven't seen it, http://cheaprvliving.com/
gives examples of "stealth" living. I myself only spent one night in disguise.
I went to see friends of mine in a performance after work one Friday night many years ago. The location was four counties away. On my return, I noticed the gas had been on "E" for a while, and there were no convenience stores open after midnight in the rural area. Halfway home, I stopped at a mechanic's garage lot across from a closed convenience store. I backed the van into a space in the line of cars waiting for repair, grabbed a thick phone book for a pillow, used my coat for a blanket, and lay down in the back. In the morning, I drove across the highway, filled up, and continued home.
That's my story, and I'm sticking to it!