My youngest Marine brought down a case of MRE's this weekend. I tell you, having a case of twelve of them in the house eases my soul. So, any of you who care to give to the 'Keep Nattie And Johnnie From Starving To Death In The Event Of A Catastrophe Fund', well, a case of them runs between $70 and $80 now. Sadly, there's a 'vegetarian meal' in each case, now, though the son claims that they're 'not bad'.
And hey, those of you who would prefer to buy me ammo? $250 for a thousand rounds of Wolf 7.62x39, baby. And I can always use more 10mm.
Regardless, stock up on MRE's for yourself. Open one of them and cook it for yourself if you've never done it before. Keep a case in the trunk of your car. By the ammo. Heck, MRE's even bring their own toilet paper and hot sauce to the party. And coffee. And a packet of fruit-drink powder. And creamer. And sugar. You can start a decent fire with one packet of sugar. Especially if you sprinkle it on about a teaspoon of peanut butter. After you just split open a piece of wet firewood (that means, any fucking wood you can find) and dolloped the peanut butter into the driest part.
There are a thousand ways to survive. If you want to, research them. You could do a lot worse than to read these. I own the original set from 1972.
In the end, it is up to you, luck, and God to save you. So, save yourself.