We had a 7pm ADR on a party night a couple of years ago and when we went to cjeck in at the podium they asked us if we had tickets and checked our wrists for our bracelets. We were attending the party that night so we had no problems except missing almost 2 hours of the party eating at CRT.
I am not sure if they check everyone or if it is because we were there right at the start time of the party.