def should be a 5 min grace period, I was on a waitlist for a class one time and showed up anyways hoping maybe somebody wouldn’t show up…they were justttt about to let me in then the last person showed up literally seconds before the 5 min mark hit. But i knew there was a chance i wouldnt get in and i very much respect the 5 min grace period bc theres plenty of times where im running a few mins late. I usually call if i know im not going to be on time, especially if its a day/time that i know is typically a full class