Nope. The Air Force doesn't conduct unauthorized UAV flights in civilian airspace. They're paranoid about causing an embarrassing incident that gets a general hauled in to Congress for questioning.
Testing occurs with a manufacturer before it reaches unit level. No program manager or contract pilot is going to risk his ticket or the program integrity to do a test like this. Or worst of all, not get paid because of a program deviation or black mark.
Once a vehicle reaches unit level it is typically in inventory with somewhat mundane and scripted test patterns for personnel to stay sharp.
The guy saying he has (had?) a secret clearance and they do testing "except when they don't" want to follow the rules is watching too much Netflix.
