Yes, those are the unmistakable red and blue lights of a US Park Service ranger patrol vehicle in my rear view mirror. Seems our hero was doing 51 in a 35, which the ranger thought was a tad excessive.
After reviewing my credentials, discussing my attire (what are you wearing that vest for?) and giving me a stern talking to, I was fortunate to get off with just a verbal warning.
When he brought my license and registration back to me he asked me what I had been taking pictures of. I thought that was a really stupid question to ask someone in Colorado, and I resisted the temptation to say something smart-ass because I figured that would just get me in more trouble than I was already in.
I was a few minutes late meeting Sam for lunch outside the Park, but none the worse for wear.