I'm not in the south, but my family is plant based and we think somewhat similarly when it comes to being prepared. Our cupboards are always stocked with beans and grains, and our freezer is always loaded up with frozen fruits and veggies (plus, with a toddler, we always have plenty of plant based milk, which usually has an expiration date around 6 weeks to 2 months out). I also use a mail order service (Tushy, lol) for toilet paper, so we always have plenty.
I'm not saying I'm boarding up my windows, but it's kind of nice to know that if/when it's recommended we hunker down, we'll be fine as far as food and supplies go.