What unusual location have you parked overnight at?

I've also parked overnight in a car wash before while travelling through Nebraska during a hail storm which lasted all night long. We have also camped next to a feed lot before in Valentine, NE which happened to be right on the outskirts of town but was within walking distance to a movie theatre and restaurants. We even got to overnight once inside a barn to get out of harms way of another hail storm in Enid, OK hosted by a gracious couple who are also members of this forum.