I feel like responding to any of the numerous counterpoints will make me sound combative, which isn’t the case. So, let me stick my toe back in the water and offer (respectful) response here;
Besides 200+ million (probably also well armed) citizens competing for a what will be a very rare resource, your battery powered drill will not operate due to EMP killing the miniature motor drive inside of it. EMP is indiscriminate, it lays waste to everything electronic. Let’s say I’m wrong on the drill. How will you charge the battery when the charger’s electronics are fried ? Let’s say I’m wrong about the charger, how will you power the the charger ? The Utility/grid controls systems are a heap of smoldering ashes. OK, let’s say I’m wrong about the grid, but you want to use you generator to power your charger to power your drill to pump gas being fought over by armed, desperate people, just like you. Your generator won’t work either. Standalone wind or solar system ? Nope, uses power electronics too. EMP will probably also smoke the solar cells themselves.
My point being with all this is that society will have decayed into mayhem and chaos within minutes of an EMP event. It will be survival of the fittest and the critically scarce resources will first go to those willing to take any measures necessary to get them. Yes, there will be people that will be able to get gas from the stations storage tanks, provided they use manual pumps and are willing to shoot their way into, during acquisition and out of any given gas station. The gasoline supplies will be depleted within 24hrs and will not be replenished due to the refineries control systems being destroyed and the transit/delivery systems being rendered non-existent. That is not a scenario I am eager to see.