Denise, good question. Back in the day, when I frequented Vegas a lot, I would check into as many as three hotels simultaneously, to get promos, tournaments and such. I would go as far as messing up the beds and take the soap and shampoo to make it look like I was actually in the room. I always would check out of he rooms either on the room TV or at front desk. You can call the hotel to find out if you can check out using your phone.
I never understood why they would not give you the promotions without checking into the hotel.