Unfortunately, for some reason, I can't book 2 nights...marriott site only lets me book 3.Our host hotel - the Eagle Crest - has added 3 more rooms to our block for Friday, Saturday and Sunday night. Use the group code "TCOTCOA" to take advantage of this offer. The rate will be $99/night for these remaining rooms!
I just checked and it seemed to work fine for me. I tried check in on the 31st, out on the 2nd, and in on the 1st, out on the 3rd. Both worked.