Go to the nearest book store and find something to teach me how to grow vegetables, nuts, grains, etc. Basically load up my car with as much surivival-necessary crap as I could manage and try and not die. Once I've got a good system going where I am able to be self-reliant, then I'd probably make little adventures into town to try and get the petrol stations working, or generators and stuff. Eventually I'd probably off myself, once I get too old to do the work properly, or if I run out of food and don't want to starve (which shouldn't be a problem, there are enough things like canned peaches and stuff that has expiration dates in X+3 years that I should be able to get back on my feet before they run out. And I live in Australia, so it isn't like my crops are going to become frozen solid, I'll just need to take care of them really well (maybe find a place with a greenhouse and 'borrow' it).