That wouldn't make a difference. What you're calling a scam, is actual law. He can do this. Part of being able to do this is admitting what you're doing. He has

That wouldn't make a difference. What you're calling a scam, is actual law. He can do this. Part of being able to do this is admitting what you're doing. He has a sign on the front window explicitly stating what he's up to. Does not sound like there's anything to get him to admit.