What unusual location have you parked overnight at?

We pulled into an empty parking lot (abandoned motel) in the middle of the night somewhere in Wyoming. Slept for a few hours til 7am when the band suddenly woke us up. Turns out, the local HS marching band used this parking lot for marching practice. I just about jumped through the top vent when the horns started up. We weren't in their way but definitely in the front row for the show.