Where I lived people were not flippant. People and institutions prepared. That is why it was so shocking to hear bars open - I figured it would be like a ghost town with people getting ready and places closed.
Evacuation is different, but it's not that difficult to prepare even months ahead of time if you are staying home. Bleach is really the only thing that would need to be rotated every six months. Water, canned or shelf stable food, hygiene supplies would all still be there.