My dad used to work at a gun counter near the state border (he’s definitely not representative of the country as a whole, this is just an anecdote I like) and two uniformed cops from the neighboring state came in wanting to buy a gun. He asked if they had gun permits for our state, and when they looked at him incredulously, he said he’d never forgive himself if he fell for so obvious a sting. He said it was somewhat tense, but they left without too much of a fuss