Holy buckets, what are you guys going to do! Send out the National Guard to hand out hot chocolate and Tang. That is only jacket weather for us, come talk to me when it is -30 degrees before wind chill and we can have some fun.
But on a more serious note, for you I wouldn't doubt that there will be a lot of frozen pipes from people who left town for the weekend. Happens here all the time, its +5 and people will crack a window for fresh air and leave for an extened weekend and come back to -15 to -20 temperatures and the cold air comes in and sinks right past the hot water pipe and freezes it solid. The room will be 40 degrees but right below the window its frozen solid.