But parking lot gun sales where the seller is not a FFL aren't illegal. Where do they get off telling him he has to prevent legal transactions?
Their point was that illegal sales to illegal aliens were being made in the parking lot.
If so, why aren’t they working the parking lot incognito. They’d catch illegal aliens and illegal gun sales. A twofer.
I suspect that they were just being assholes because BATF asked them to, and because of politics.