If you are willing to expand your horizons a little, you can have some great experiences. My parents used to stop at deserted gas stations and other secluded parking areas. Once they stopped at a church somewhere deep in the South and were invited in to listen to a singing, and then invited to spend the night in the parking lot. They once asked an officer in a small Alabama town where they could park overnight, and he told them to pull into the police department parking lot. They're gone now, but I soon hope to start following their example.