We are in Salem, Oregon presently and also going through a bit of the same cold spell. Our supply hose froze also, but fortunatly I kept the fresh water tank about half full. It warms up just enough for the hose to thaw and we add more water to the tank. We are just relying upon that untl the weather warms up a bit. I went to Camping World to see if they had one of those electrically heated hoses, but no luck.
We have been keeping pretty cozy inside though. All and all, it's handled the cold weather pretty good for us. We will be heading back down to So Cal though on Friday.
