When I lived in AK we left the water on just a trickle to ensure that the pipes different freeze. The pipes were also wrapped with heat tape and we plugged our cars in at night to ensure that the batteries didn't freeze. There was nothing we could do to keep the propane from freezing -- that was a sit and wait till it thaws out.
This is a fluke in TX and if it happened here in FL, we wouldn't be prepared either other than our grids keep getting upgraded because of the hurricanes and we have a generator; if things got bad we'd probably hop on a plane with our family and go to the Bahamas or Cancun.
