I get the not looking in the luggage, but kind of surprised the closets are off limits. I always assumed that anything I left in a hotel room, whether on the floor, in a closet, or in a drawer was getting looked at by the cleaning crew...
Another item for the learn something new everyday file.
Vegas operates off a different set of principles since they are always a prime target for litigation. Everything for the room crews in the larger properties is highly business only. Get the job done and get out because people are constantly in and out of the rooms, 24/7. Plus, that property has about 33,000 rooms.