I like unsweetend tea. Sweet tea is gross.
The only place to get unsweetend tea in the south that I know of is McDonalds. I would be sad :(
This is based on my personal experience from driving through the south to get to the Gulf of Mexico (Florida). Maybe I had a bad experience... but everytime we stopped at a gas station, they would not have any unsweetend tea.
We are going back this summer, so perhaps my experience will be different.