A followup on my original post.
We stayed at CCV Dec 9-12. Our reservation was a "hotel"-like "cash" reservation directly with Disney, as we are not
DVC owners.
Our magic bands opened the locked door to the CCV laundry room [it is on the 4th floor, off a hallway overlooking the lobby area] and we were able to do laundry with no problem. FWIW, we did laundry a couple times during our stay, and other than the first time we went to laundry room to locate where it was, we never saw anyone else in there.
SW