Bert and Heather,
Because of our strange circumstances, we used to often travel late in the year. Yes, we got snockered in a couple of times. Fortunately the first time it was early in the excursion and we had fully provisioned. That was really good. We just hunkered down somewhere out of everyone's way and watched the chaos unfold through the warm windows. About a day and an half later, we ventured out onto the highways again.
At the first opportunity we refilled the LP and other provisions to in the case that we might get hit again. (We didn't that time.) Ever since, when traveling late in the year we always have three solid days of provisions so we had hold up rather than be in the mayhem.
Matt