I remember doing this in the theaters around Fort Bragg... Glory holes, and sucking/jacking in the theaters was a staple on those "just need a nut" nights. I miss the free head and creamy protein shots.
Totally agree! I love getting caught in the act by an appreciative voyeur. So I frequent known cruising spots while naked in my car. I'll find a relatively safe spot to park, prop a porn mag up on my steering wheel, lube up and masturbate as I wait for a kindred spirit to stop by.