If somone of authority asks you to stop doing something, YOU loving STOP DOING IT.
Not if the authority is wrong. Challenge authority when they're wrong, don't just take their stuff when there's no reason to.
For the people saying they probably weren't arrested, when the guy gave the warning at the beginning of the video, he said YOU WILL BE ARRESTED. Since they were being arrested, they should have been read their miranda rights. AND THE OFFICER SHOULD HAVE TOLD THEM WHAT LAW THEY WERE BREAKING. He couldn't seem to tell them what they were doing wrong at any point, and the offenders did ask what they were doing wrong. I think that's a big part of this video. If he had said "you're in violation of law blah blah blah" with the specifics, they would have stopped. Since they saw no proof of what they were doing to be illegal, they continued to do it because they had the right to, even if it wasn't the smartest.