I got one under my door at the Sheraton Midwest City, for a stay the night of 1/5, only problem was that it was the folio for the guy next door.

He paid more than I did for his room.

I took it down with me when I went for breakfast and requested (and got) my own.

I think it was an honest mistake. They had written the correct room number on the back of his, just delivered it to the wrong room.