Here’s the video of the guy destroying Trumps Walk of fame star...now being investigated.....
http://deadline.com/2016/10/donald-trump-hollywood-walk-of-fame-star-destroyed-video-1201842969/
so the cell phone gps tags can be subpoenaed. The video of the crime can be subpoenaed.
This was not art.
This was not speech.
Time place and manner rules apply.