hmmm, I guess I live in pretty dam cold territory
In my neck of the woods, we turn off the water main and then open all faucets and flush the toilet. This normally takes care of most winter weather.
But popping back up in the 50/60s ... I'd gander that you'd be ok. You need time for the internal house temperature to drop low enough to be a real problem.
We normally just have the pipes freeze with no breakage. But ... your miles may vary.