The War on Photographers

Speaking of shooting pictures of Pikes Peak this morning, I came across something very disturbing. Apparently, unbeknownst to me prior to seeing the sign in this photo (click to enlarge), I was breaking some kind of law while taking pictures up on Rampart Range Road. This is unacceptable! What ever happened to freedom of expression? Am I going to have to be on the lookout for Johnny Law when I'm out shooting? This is the U.S. of A., for cryin' out loud! I think I'll start a petition.