Pray for warmer weather. Not trying to be a smartazz, but the time to worry about is before they freeze. Afterwards is too late
I didn't take that as smart assed.
I took it as dumb assed.
Salvage what you can while you can.
Put a hair dryer to suspected low spots if you have to.
Run the stove with the ghetto style.
Open any and all barrier to pipes.