Well, that's a different debate, and a fair one, where the issue is more neutral - open carry at a protest, versus curtailment of rights when POTUS is in the vicinity.
http://www.fosters.com/apps/pbcs.dll/article?AID=/20090811/GJNEWS_01/708119863/-1/FOSNEWS
http://www.seacoastonline.com/apps/pbcs.dll/article?AID=/20090812/NEWS/908120365/-1/NEWSMAP
This is a DIFFERENT person than the person open carrying outside. This person entered the High School after it had been closed to the public, and initially swept, but caught by the Secret Service with a knife. His car, which was improperly in the parking lot, was scented by bomb sniffing dogs and towed for further testing. Inside they found an unregistered loaded gun. The person with the legal, registered, loaded gun protesting outside was not arrested.
As far as I’m concerned and as I mentioned numerous times, it never was about a curtailment of rights.