Yup, although I have to LOL when I see someone at HD or Lowes with a genny and ONE 5 gallon gas-can, these people think it's like running a lawnmower, it's not, these guys work their ass off and gulp fuel accordingly.
I live in NOLA and have been through quite a few hurricanes, including Katrina. Well, I got the fuck out of the way for the actual storm but I was back in the following day with the other tier 1 companies/responders, basically I was in the same caravan as the first electric vehicles. The amount of people who bought gennies and one or two 5 gallon cans of gas was just crazy. I had over 150 gallons of gas already stocked in my backyard that I constantly rotate into my truck. Still, I had the entire back of my truck filled with gas cans on my way back in because it took too damn long to leave town to get stuff and get back in and gas was the most precious and fastest consumed commodity there is in situations like that. I tell everyone that will listen to stock up on a few days of food and water and as much gas as you possibly can. Fuck stocking up on gold, extra guns, massive supplies of ammo, tons of food, etc.... During Katrina I could trade gas for ANY of that stuff and at absurd exchange rates in my favor. Hell I had one guy offer to let me sleep with his wife for a few gallons of gas!! I feasted like a king for a two weeks straight in exchange for filling up two #5 bottles of propane, I'm talking huge steaks, ribs, shrimp, etc... All of this at a time when everyone else was eating MRE's. I actually did trade some gas for a nice gold chain, cost me $35. I could have gotten all the guns, ammo, food, water, gold, sex or whatever else I wanted with gas and I got to set the terms. OTOH if you wanted gas you were almost always shit out of luck because everyone was low and needed what they had, hell most needed more. You had to find someone with some they could possibly spare AND you had to make them an offer they couldn't refuse for them to even consider it.
It generally takes the national guard days to arrive and start giving out free food (MRE's), water and ice. Power, including the power for gas stations, takes much much longer. In post hurricane areas gas is KING. Period. Full stop. End of discussion. A single cheap pump action shotgun is plenty adequate to protect you and said gas. Even during Katrina simply having the gun visible (slung over your shoulder) made the roving groups of thugs and bad guys go the other direction and not mess with you, again this is from actual first hand experience.
One tip I will give people that not many people noticed. The power comes back on sporadically in areas and people would assume that since the gas station was closed they couldn't get gas. If you see the power is on then pay at the pump almost always worked regardless if the store was open or not.