Store shelves are emptying.
Consider that many folks will be bugging out so gas stations will shut down early so unless you can pay at the pump you are out of luck. Then again, everyone else will be trying to get gas. About ten-fifteen years ago when Texas did a mass evacuation from the Houston area, a tank of gas didn't get you very far because you spent all the gas idling waiting to get through red lights. Those folks filled up the hotels quickly. Then there was the odd glitch. In Texas, two major evacuation roads out of Houston converge at the small town of Giddings. Miles and miles of vehicles waiting to get through town trying to get to hotels in Austin. Property owners stretched out water hoses to the highway and set up makeshift portapotties. People were crawling through fences to potty in the woods. Entrepreneurs drove ATVs down the sides of the road selling very expensive iced drinks, gallons of water, and full gas cans.
Nowdays with better navigation and gps one can loop around through county roads if you don't have to stop in towns.
