We had a quite a cold streak here with temperatures down near zero. There were enough days in a row that I ended up with a frozen hose bib. It burst inside the wall and flooded my downstairs.
I found the water shut off and the whole family pitched in on emptying the room. Then we used two wet/dry vacuums and got all the water up. I had to cut a hole in the wall and find the burst pipe and repair it. Then boosted the temperature up in the room, ran fans and a de-humidifier for a week.
Everything is back together now and I am back to using the room.