What happens in a situation like this? Does the staff issue physical keys? Do the doors even have manual locks? Do the staff walk every body to their room?
About a year ago I stayed in a hotel and the door lock started misbehaving one morning while I was at breakfast. Went to the front desk, got a new card, went back to the room and discovered it still didn't work. After doing that two more times, someone was sent up to the room with a mysterious, palm-sized device with a USB cable hanging off it, which they plugged into a well hidden USB port on the bottom of the lock. The device performed some black magic, and after about 30 seconds a light on the lock changed colour from orange to red and it started functioning correctly again.
