Guys, my question was strictly related to whether the pipes and tanks would survive if we camped with water. There are plenty of campgrounds open in NY at that time and I've backpacked into the teens at night, so a heated and insulated (as wimpy as the insulation might be) will be dreamy.
Thanks for the suggestions. We will keep an eye on the weather and see what it looks like when we get closer. If it appears it might be a dicey temperature then we'll plan on dry camping with jugs of water like the tent and 1980's Jayco popup days.