At this point you ain't going to work, might as well hunt.
Regarding sanitizing water, everyone would be well advised to research the use of calcium hypochlorite for that purpose. Boiling is best, but may become impractical and dangerous.
But, most important of all is MINDSET. Don't plan to "hole up"...plan on taking and keeping geographical areas. If not, when you finally do emerge from your spider hole you're going to find yourself in "Somalia".
You might want to re-think that. The only reason wild game is still plentiful is because it is regulated via seasons and bag limits. Once the food supply is cut, wild game will quickly disappear.
We are planning on raising rabbits for protein because of their fast reproductive rate and they don't need a whole lot of space.
Another thing we're planning is using rat traps to catch squirrels.
I dismissed the hunting option long ago.
Back on subject, we're storing both freeze-dried foods and bulk rice, flour, yeast, etc., and canned foods. The canned foods will be eaten first, then the freeze-dried, then the bulk stuff.
Remember, your stores are just to buy you time until you can get your garden growing and livestock old enough to harvest.
Folks with security skills might team with local farmers to provide security in exchange for meat.
AD