If you can get your hands on the right uniform then you can fuck about in big hotels without anyone asking any questions.

Find out where the single women are, knock on the door - "room service" *door opens*, "your husband sent me, he said he will be a long shortly and that we should start without him". Drop trousers quickly. She may or may not approve but at the very least you get to show a REAL woman your nob and then make your excuses of "wrong room" and scarper... then have a wank in the lift.