I had no idea that I couldn't use a free night certificate (as opposed to points) for someone else. So I've got a rez in my name in my town for tonight for a friend. I could go down to the hotel and check in for them if absolutely necessary. I obviously don't want to do that if I don't have to and also don't want to do that as an emergency situation where they can't check in. Would be awkward. I also can check in online now since it is for tonight. Not sure what then happens at hotel. I haven't stayed much at Marriotts so am not sure.

What do you all recommend?