Almost overnight you would have no access to food or clean drinking water. There would certainly be no gasoline, heating, cooling, showers, etc.
You wouldn't even be able to "get" money - ATMs won't work and you certainly won't be able to use your smart phone. So you would not be able to buy life necessities even if someone were selling them.
A job will be the last thing you think about.
What is the required amount? And where where would you go?
Where would I go? It depends
I always tell my team that if things go bad then I'll be the one keeping them alive.
I intend to attach myself to a raider strongman, to provide solutions to their difficult problems, such as how to crack an entrenched survivalist's defenses and get his stockpile out. I'm a decent hand at basic chemistry, too, like organic extractions and distillations.
There are many potential princes, and Machiavelli only needs one of them.