My first goal is secure my immediate person -  pick up a large blunt object.  In a pinch, a vacuum cleaner wand may work.

Then my goal is a better weapon - There's a gun store with ammunition across from the Placemakers in Kaiwharawhara.

Then my goal is better clothing and to find my wife - any sporting goods store and then head to agreed meeting point - home.  I'm no good to her if I'm not secure in my person.

Then my goal is food/water - The mall in JVille has food/water, although it may have been raided/swarmed.  I have my earthquake box at home, good for 3 days 2 people.

My house has an attic with a raisable stair, easily secured.  Cut a hole in the side and we have a way to get in and out.

Fire is a concern, fires will rage out of control, and there will be a lot of them.  A lot of stoves will be on when it hits.

If I have to leave town, motorcycle is better than car, and bike is better than walking.  Train tracks are better than roads post collapse.

The trick is to know when it is real, and when it's something else.  There's not much point in breaking the law and stealing a gun when it's just some wussy terrorist attack!