In the South East, they bring you sweetened (usually far too sweetened for my tastes) iced tea. This is amazingly universal.
I live in NC and have been probing the border for years.
For “nicer” restaurants, the universal sweet tea boundary seems to be precisely at the NC/VA border.
I suppose I could see char being an apt description (which I’m curious if that is what the other commenter was referencing). While I wouldn’t say it’s roasted, the flavor itself could convey that flavor I guess. Being roasted isn’t the only way to get a smokey flavor, which I think is one of the main flavors I associate with the word “char”. That or charcoal.
Let’s not read too much into my dumb joke.