There was a drive-in in North Charleston, SC, mid 70's, that showed soft X, visible to the overpass on I forget the road. You could park and enjoy the glory until the cops ran you off.
Oops. Ever been to a hardcore, Paul Reubens kind of art house?
I-64 at the entrance to the Hampton Roads Bridge-Tunnel is often a parking lot at any time day or night... like Halloween night a few years ago. After a RHPS at the Naro Theater in Norfolk, the Goddess and I had enough time to engage in a vigorous and mutually satisfying 69 before traffic started moving.