Didn't know they were a chain - we have them in Chicago (not the CEC pizza, but the alias).
https://www.nbcchicago.com/news/coronavirus/to-support-local-business-in-pandemic-they-ordered-online-chuck-e-cheese-pizza-showed-up/2259542/
Maybe it's just the "Dead Heads", the ones that travel with the band from concert to concert. I've heard that there are some so devoted, they would take a year off from work just to follow the tour.
I only like "Casey Jones" and "Truckin'". The running joke was that their fans love their jams in concert - but they were all baked, and didn't realize how bad the music really was.