Coming S on PCH a little N of San Francisco today, a friend and I were stopped by a group shooting a car commercial. CHP at head of line with lights on so I didn't head to the front of the line. After 5-10 minutes we started moving. I saw two bikes at the front with about 15 cars back to us. The line moved extremely slowly. When we finally passed the CHP at the other end of the roadblock, no increase in speed. I started passing-pretty tough, very short straights, mostly first gear. When I finally got to the front of the line, there was one HD multi apexing through the corners at about 20 mph. WTF, why not pull over and let the cars (and a couple of 6 wheel straight trucks) pass? When I got to the next town, I pulled over to wait for my bud, he's not comfortable with aggressive passes. Here comes the HD rider, gives me a nice wave and after stopping at the red light, paddles through the right hand corner. I don't get it. Before that I passed a group of cruisers, in formation, going N on PCH with a line of 10 or so vehicles stuck behind them. Last year on Arkansas 7 between Harrison and Jasper there was a cruiser group that was holding up a semi! Ian, Iowa