This post is a little tongue in cheek. I work in retail management at a store located in a shopping mall. We sell nothing that is essential. Our corporate policy is the store does not deviate from posted hours unless a mandatory evacuation is ordered. At the same time, we are to take into account where associates live, how long it may take them to get home, etc.
IMHO, once a voluntary evacuation is ordered, all stores that do not sell essential items [food, medicine, batteries & electronics] should close. The reasoning is that 99.9% of the time, a mandatory evacuation will follow a voluntary evacuation. People don't need to be buying jewelery, clothes, books, etc. when there is a danger of a hurricane hitting their location.
Evacuations aren't ordered just for fun. They are done to protect lives and property. You can bet that a lot of thought and discussion goes into the decision making process.
I understand that business is in business to make money. At the same time, if the business truly cares about its associates, it needs to honestly evaluate the question "Do we need to be open when there is the threat of a hurricane within 36 hours?"