Unless they're going to see real repercussions for doing so, get definitely can do whatever they want. Rules and laws only matter if people care enough to follow them and enforce them. All they have to do is pretend the person didn't comply, and now they've got all the authority in the world to anything they want, regardless of what it says in the law books. Just look at what ICE is doing to US citizens; border patrol knows they can do all of that, too.