Texas knows better than the rest of the country and runs water above ground through unheated, uninsulated areas using drop downs which is illegal in the rest of the country in normal residential builds.
In my area you can’t insure a home setup the way a normal Texas home is.
It wouldn’t take “much” for Texas to correct the law for future builds, only 2 other states are as lax on common sense building code.
That said shutting off the water and cracking any taps should allow any pressure to release and will prevent a waterfall from the ceiling, not as good as draining but far better than leaving the water on from the street.
Turning the water heater off usually isn’t too tough either.