Thanks, I got scared because everything I have ever read on wine storage has said that rapid temperature variations are bad. The temperature has normalized now. I've noticed that some corks are not perfectly seated (ie. level with the mouth rim or extruding 1mm, rather than depressed lower than the mouth rim), but I have no recollection if those preexisted the incident or not. It is common for there to be variation in the seating of corks though right? I pulled the capsules on a couple bottles here and there and there are no signs of seepage. At worst, a couple of bottles show small amounts of wine up the side of the corks.
Rapid temperature variations are more of a concern if they happen regularly right? I would assume that similar variations happen occasionally when shipping the wine from producer to distributor to the end retailer, sitting on the store shelf, or when a collector moves their collection?