I just spoke with Clearly Cayman. Both Resorts are open and undamaged apart from a bit of a mess to clean up. Cayman Airways Express seems to be back on schedule. I suspect the viz will be way down for a few days.
I was thinking the same thing on the viz. If you get time next week, let us know how the viz is - I'd think it'd be cleared up good by Sunday/Monday for the most part. ...but what do I know.