Sorry for a lot of text, but I want to explain in detail.
Well, what I would first do is when the first reports are in the media, I would go to small stores, or use my own supplies, but I would not go to WalMart or other huge store, because of the huge riots. Luckily, my dad works in construction, so we have ready supplies anywhere, plus a huge van where he carries his supplies. I would take all of the drywall knives, and such that he has and make a stockade of hand-held weapons and firearms. I would barricade our house with my dad, and put "homemade" security system, consisted of rope, bells, stakes, and rocks. I would then put all of our supplies into one closet, a place for easy storage. When s**t hits the fan, I would climb to the top of our house with a ladder with my family. If that doesn't work, then I would gather all supplies into my dad's van, and flee to the nearest military base, school, or prison. Reasons why I chose these places:
Military Base- Stocked with guns, food, and soldiers that will protect you.
School- You have lots of places to go in a school.
Prison- With stone walls, the bars on a jail cell, and there will most likely be guards in a prison.
I would barter with other people so I can get what I need to trade or as a necessity. Ex. I trade Salt for a Bottle of Tylenol and then I trade the medicine for Ammo.
Medicines such as Anti-Depressants would be good because the moans of the undead or the death of loved ones. You wouldn't want members of your group committing suicide.
I would then form a small colony, be the leader and create my rules, while still having freedoms, until the world comes back.