Hotel Room Keys
I worked in a large resort, master keys are all logged and assigned to who ever checked them out, only by security. When you clock in and when you clock out .
Also if a key goes missing or you lost it, ALL the masters are thrown out and they have to make new ones. They determine with each case if you'll be fired.
Those locks on the doors are smart, they keep track of which keys used it.
Whatever I guess we can just assume that the bartender knew someone in security. Lol