The no-fly zone is for all aircraft. News organizations can get permits to fly, if they want to. It appears that none of them wanted to for this event. As for traffic copters, very few of those here in the DC area and none that I am aware of that fly on Saturdays, not even to cover traffic heading out to the beaches.
I saw a helo flying nearby, not directly overhead, a bit to the southeast. The should have pictures, unsure if it was news or police.
there was a helicopter that flew around every hour or so. At one point the entire crowd turned and waved to it.
There was a helicopter flying around. Not sure what time, but somewhere between 12 and 2. We were standing near the pool at the time and later moved closer to the Capitol.