Some months ago, I read info. from the trucking industry itself and they said if the internet doesn't work to transfer money, no truck will leave the loading dock. Forget lack of gasoline or anything else, the money has to change hands before a truck leaves and no truck leaves if the money can't be transferred by a click.
So, you can reevaluate the food delivery or medicine delivery or ANY truck delivery scenario - it will stop sooner than you have thought.
My mantra has long been since 1998 when I began to prepare, “When trucks stop, it's over.”
And the trucks on the road need to gas up about every other day, if they are going to get anywhere. Once the truck stops are empty/looted, it’s over. The govt will try to order trucks to move and diesel to flow, but it won’t work.