They don't have permission, and the cops haven't done anything. Again, that's the main point of the main protest. They don't have permission- again, something that's been brought up at the protests, and is on the signs themselves. Yes, they are actually violating the law.

Maybe you should like, educate yourself on the issues because picking a side? That way you can actually be informed, instead of spouting reactions that really don't make sense in the context.