This law makes the perfect kind of fucked up federal logic this country is built on. The police can check the papers, they just can't do anything about it. And the Feds have authority over the punishment for this kind of thing. Unless I'm misunderstanding the ruling, it almost seems... logical. I mean, so what if the police can ask for your papers, it doesn't have any actual consequences, does it?
Stripped of everything else in the bill, that one provision seems rather impotent. Unnecessarily, useless, stupid, but completely impotent.