Another possibility...I did this several years ago...posting in case anyone else is a night or two short and reading this thread, as I see you're going to book a meeting, which is probably the best thing for the number of nights you need.

I was a couple nights short one year. My friend's parents were coming to visit for a few days. I met them at the hotel, we checked into their room using my friend's father's credit card and my MR#, they stayed in the hotel and I got the points. They got CL access, to boot.