Thanks for your replies!
So...I called the Westin villas earlier today to try to get some precise info on the various properties. I asked specifically about the late check-out at the villas, and she said that it's possible. But of course that it depends on the owners - if they are checking in afterwards, or if there are other guests. I told her about the various 'forums' that I've been reading

, and that most everyone said there is no late check-out ever...she said that's not true. But that I would just have to ask when I check-in.
Is this lady totally off, and she just doesn't know what she's talking about?