Well, when you are able to pull in labor, food and other supplies from the unaffected areas, it's a much different scenario.
In the event where the entire US goes into the blackout for 2 weeks, things will be different. Sure, maybe not an apocalyptic anarchy on the streets, but there will be unrest. Because most people don't have extensive food and water reserves at the place of their residence.
The larger point I was trying to make is that things will be getting exponentially worse as time goes on, and the point of no return will be hit eventually, if we are not able to address the issue quickly.