The fact that margins on gas are slim does not mean gas stations struggle to get by. The gas is there to get people in the door to buy snacks, drinks, smokes, and lotto. Tobacco and lottery tickets alone make an absolute killing, and the station couldn't sell any of them while the power was out. The author of the article actually owns a gas station, and he figures the other owners were just short-sighted. I don't see any reason to doubt him.
= Nobody delivers gasoline into high-risk areas. Shortages persist.
= Lines of trucks can be observed from *orbit*, attempting to enter the area to supply the demand; prices drop almost immediately.
... But it sounds like you're not arguing for price controls, specifically, but for some kind of government intervention. I agree that requiring backup generators sounds like a much better policy than anti-price-gouging laws, since it's at least not obviously counterproductive.