I have done this a few times.
But only with a repeat provider, and only when I was staying at the same place for more than a couple of days.

it happen to me very many times that i was given the key and or I was left to sleep longer after he had already left the hotel. Of course I honored the trust placed n me, but I was also very surprised.

...A very simple fantasy of mine is to arrange to hand off a room key to a provider so she could give me a wake up call in the early a.m. (like 7 a.m. early) She would quietly slip in, get nekkid, slip under the covers and pull them completely over her head and awaken me with a BJ. I'm looking forward to that happening.

I did that once.

are you people crazy?? wtf!

I take it that means you have never given a provider your room key.

Well, I am sure that will happen as soon as you want it to happen. Can you hear the sound of scratching hooves?

I have, but usually just to enable her to pass security on her next visit to that hotel.