I do think liability insurance is a good idea in theory; in practice, it will shut down "little people" projects and will likely only effect the worst of the wo

I do think liability insurance is a good idea in theory; in practice, it will shut down "little people" projects and will likely only effect the worst of the worst. (Which is not nothing, but not enough.) Mroe generally, the answer is "everything you can think of". People are trying to pull the world in a direction you don't like, so pull it in a different direction. Poison their data. Explain why they're awful to everyone you can. Talk to your local ABC authority before these jerks get there and explain why this is terrible. Try to solve the whatever actualy "problem" there is here in a less intrusive way. Whatever else you can think of that is legal. You don't have to ask for permission to fight back. For my part, I will not go to establishments that scan my ID. I'll show it to you for legal compliance reasons, but you don't get to record it. If your house rules say otherwise, that's fine, I'll spend my money in some other house.