Again I don't follow you, Mr stripey shirt would have never gotten agitated because you would have never agitated him.. My opinion, Mr. SS was part of Freemen, but he was there for himself, he was trying to agitate the SP then the MPD.
I also suspect the guy carrying walks around outside the meeting location, on the days of their meetings until he is spotted by LE, then makes the call.
I can tell you from personal knowledge that this is the first time this sort of thing has happened outside the meeting. I would have been there myself, carrying openly, with my wife and son, if it hadn't been for the electrical wiring I had to get done on Saturday.