Perhaps it would help if I list of what I assume could happen in the order of likelihood:

One calls this planning--don't overlook drought, or trucker-strike, given your location.

Even oh-so-cheery, "no one's evil" DW finally gave permission for a three month store of food and water (she really doesn't need to know it's more than that), and firearms/ammo.

A former hippy from Mendocino County, People's Republic of Kalifornia gave me permission to buy extra food and weapons. Really.
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Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein