Pete, here's little history why people down here do that. You see.... its an old Southern "thing". Back in the day, we use to get hammered with 3 months of snow. When it snows, we don't scrape the roads to allow cars and trucks to pass. That's too costly. That scrapping only creates pot holes and messes up the roads. Instead, the cities spray salt everywhere. Years ago, business shops, grocery stores, schools and other businesses use to shut down. So, in preparation for the shut down, folks would get enough food to last a week. Why? Because back then the power use to go out. I grew up in a small town called Hickory. North Carolina is full of small towns. Hickory is one of them and the furniture capital too. The small towns did not have the money to scrape the roads. I went to college in Greensboro, NC A&T. Every back then everything would shut down..
Back in the day (1960s), most small homes in small towns had fireplaces or a pot-belled wood stove. We had an oil stove and a pot belled stove. My Mom would sometimes cook on that wood stove. It was in my bedroom. I remember cooking apples on it and hated to see Fall come. Why? Because my Dad would have a huge load of wood delivered. I was 7 yrs old and had to move that wood to inside the shed otherwise it would get wet..... and you can't burn wet wood! As a kid, the only part I did not like about winter was going out to fetch wood from that shed. It was such a pain! Once I had to purchase and carry 3 gallons of oil from the local service station all by foot! It was about 75 yards from my house. But when you're 7 years old and you have to walk in a foot of snow and carry 3 gallons of oil in a heavy tin oil can...it was something I will never forget! To this day, I don't know how I was able to carry that oil home. But I do remember stopping a million times trying not to fall and spill the oil.
And if we ran out of oil to heat the house, we would just add more wood to the stove. That stove would turn ruby red! Everyone would sit by the fire and just wait the snow storm out. That was the way thing were back then and folks here do the same thing today just in case the power goes out. But its a Southern thing!