Should not have any trouble with those temps. That said, regular maintenance on your rig should have you treating those seals, etc.
We leave here at much colder temps, we put slides in and out, they may stall if it is really cold, wait a few seconds, they will start back up.
Turn the heat on to load freezables at last possible moment, keep on at about 45 to keep them from freezing.
Do the water thing and pink when you get in warmer climes.
We left here a couple of years ago and it was 4 below. So, your temps seem rather mild to us,
you will be fine, enjoy tha rig and your trip!