Was that an official stoppage, or was he just checking everybody for endorsements and stuff?
Just a planned road block in the middle of a 15mph hair pin curve checking licenses. I said "yes sir" and "no sir" and we showed our ID's an away we rode.
I've come across several of those illegal, discriminatory road blocks (unless they were stopping ALL vehicles, not just those of the two-wheeled variety), and I'm always sure to contact the enforcement agency responsible to express my dissatisfaction. (I'm always cordial to the officer during the actual stoppage, of course)
These are, unfortunately, getting more common in NC. I haven't hit any in the mountains yet, but I've been stopped at two out in the coastal plain...literally out in the middle of nowhere. I couldn't tell if they pull over anything other than motorcycles because both times, I was the only thing on the road for miles (that I could see, lol). Both times there were 3-4 police cars and everyone was standing around, shootin the shit.