I think that's absolutely fair game. Why is he intoxicated if he's on duty?
We can't find a set of keys that belong to the property, and we don't know whether they have it. So we have to replace the locks and the keys, which are a special system.
Intoxication can cause a person to do things they might otherwise not do.
I certainly think the door's open. It's up to the city to argue otherwise and a judge to decide it.