Panic – Start freaking out right away because it always helps.
Hoard – Buy up all the milk, bread, eggs, and water. Buy as much as you can. It will rot in your fridge because you will lose power.
Ignore traffic laws – Run red lights, try to ram the cars pulling out in front of you. Walk across busy streets with dark clothing.
Fight – If you feel like someone is stopping you from hoarding, or you want to prevent someone from hoarding, then fight them.
Don’t do any of this. Just remain calm and pay attention to your local officials. They have your best interest in mind. You will be in lots of traffic coming and going, so be patient. If someone is being an idiot, just let them. If you have to scramble at the last minute for water, non-perishables, ice, or generators, then it’s already too late.