“Should make catching them a whole lot easier. And then show them to the door.”
It will then be time to break out the local posse’s to turn these lawbreakers in.
First they break the law by coming over the border, then they want to riot.
Deputize me today!
Must maintain the chain of command and the rule of law as long as possible to avoid total chaos and anarchy. See your local sheriff. He's/she's authorized to do that, being elected by the good Citizens of your county. Giterdone early. May not be time to do that after the ballon goes up. Take a bunch with you. You'll probably have to buy your own guns and a hat, but maybe you can bargain for some ammo. A stand-by reserve. Yeah, that should work.
If the enemy, whoever they turned out to be, knows we've got the numbers and are organized somewhat, it may be just enough to avoid a worst-case scenario.
Once the bill passes, they will have legal standing and full protection of the US Government. Therefore, no law enforcement agency or citizen will be able to touch them under fear of federal prosecution.