Thats exactly what we did... Why not go in... Ruffle the sheets a bit, spend some time in the room. Leave.
I had the same issue, IHG credited me the points, but it still doesn't show as complete. I lost a Hyatt qualifying night because of this, I won't be staying there again.I tried calling w/ no success. The front desk said that by law, they had to check everyone in with an id. Also, I've been having a difficult time having IHG recognize that I completed the challenge. My chart says that I only stayed 2 nights, etc. If I had a choice, I never would have participated in it.