His little gyrocopter represents capability for approximately as much potential harm as a motorscooter. Frankly this guy could operate in and out of there all day and if something went wrong there's plenty of open space to fall into.
Those laws he broke exist for the primary purpose of maximizing police convenience so they may crack down on idiots. But they don't hold much water when pressed up against the first amendment. That's a peaceable petition for redress of grievances and trying to make an example of him is a pointless waste of our tax dollars.
I dunno, little flying choppers might pose a risk to other bigger choppers which often fly in the area. The Secret Service would probably frown on that. But who knows.