I admit I don’t know a lot about this type of stuff, but there must be some (probably super involved) way to get this enforced. I mean it is written in law so there must be some way to fight it, but you’d probably have to sue the Ordnungsamt or the city some shit like that.
I might be wrong, but didn’t Einstein say something about WW3 being fought with a club? Maybe this is the beginning of that developement back to the roots.