Single night stay to drop off UCLA son. The room was clean and spacious, nicely quiet for a good night's rest. The next day, I planned to do some work before checking out at 12 pm (the required time). The cleaning woman knocked on the door at 10am "oh sorry" but then came back again half an hour later. Lady, check out isn't until noon, why you keep bugging me? Finally put the do not disturb sign on the door, realized should've done that in the beginning, but have never had this happen before.