Joshua,
This time of the year when the weather is near freezing I just take the liberty to take the hoses off the spigot and leave the seller a note on why. Many call to tell me thanks and sometimes I have booked a HI for them on the home they are moving to.
If I see those foam covers out in a garage while I'm there, I've been known to even put them on if I know freezing weather is in the forecast. I never got dragged into court for doing so either.
Rick