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.
Depends on the place Asian places will give you a kettle mug and a box of teas and other places will just give you the mug of hot water and the box of teas and sometimes you can ask for sweet tea and have the full options of sugar maple honey and raspberry tea I’m from Vermont by the way