You raise a good point. If an exit checker ever did say "Wait! Stop!" of course I would be friendly and let them check my receipt. This would be the simplest

You raise a good point. If an exit checker ever did say "Wait! Stop!" of course I would be friendly and let them check my receipt. This would be the simplest solution, as my goal was not to prove a point about my rights, but simply to exit the store in an expeditious way with the merchandise I paid for. But they never did question me, so it was never a situation I had to worry about.