delivery in the cold!?!

So we just got a delivery from a shop we often get tarantulas from but normally there is a heating pack in the box and this time there was not. Wouldn't you know we have a sever winter storm going through and the postman took all day to get to us so the box was freezing. One of the tarantulas looks fine but the other does not. It's a Ephebopus cyanognathus and is moving but barely and the legs are slightly curled under. We got it into a warm room and put a few drops of water in front of it. Just wondering if anyone has had any experience with tarantulas in the cold. It's slowly moving one or two legs at a time, kind of like it's trying to lift them but not being successful. Any ideas?