I just asked G-half if he'd tell me if he found a snake in the camper. He said I'd be able to tell from the screaming and him scrambling for the door. (It'd be a race, actually. We have copperheads here.)
We had a snake stuck to a glue board in our garage after the glue board caught a shrew that was probably after the spiders on the board.
I can't recommend using glue boards to find/catch snakes. But if you DO, be prepared to peel it off the glue board to return it to the wild. It is NOT fun for any entity concerned.