Congrats! I was there too. Planned to do the 55, missed the turn (and didn't realize it) at the first truck, and rode an extra while with the century riders. Turned off at the big truck with the signs on it (along the long, straight section). Ended up being 68.5 miles. My longest ride to date.

Best part was that I heard people talking about what mile we were at, and I couldn't figure out why my count was so much higher. Turns out I had rejoined the majority of the 55'ers. First organized event ride was memorable to say the least!