I'm afraid that you'd be listening to choking sounds once they hear the cost of the utilities. And, of course, the local government would just love to collect all they can in the process.
Better might be to try to find some places on the internet that list free places to overnight. I know I've visited these kinds of sites, but don't have them among my bookmarks.
Just be a bit careful about it. As soon as you set it up, you'll find your parking lot populated by effectively homeless folk who've found themselves a "hunter's special" RV (i.e., nothing works) and need a place to live.
Lynn