By any chance, did you tour Balcony House? My shoulders are too broad to exit through the tunnel in any normal fashion. I had to go out on my side...almost didn't make it.
I had to go back to my notes from the trip to find out. No, Balcony House was not one I got to see. When we got to that stop in the park, I wrote there were unusually long lines (and a warning about the 30-foot tall ladder, which would be too problematic for me to climb because of my large feet and even larger shoes). It being the middle of the day in July, the heat was above 90, and standing on a long line was not something I preferred to do. Fortunately, I got to see most everything else.