[DVaut1]

There are 3 casinos in downtown Detroit (MGM, Greektown, Motor City) which I'm pretty sure aren't on any kind of tribal land. They were authorized by Proposal E back in the middle of the 90s.

While what the OP cites may be a law, it's almost certainly the case that I've never heard anyone arrested, let alone convicted, for those crimes.

So, my advice is to sleep easy.