No one from the south would say this. And definitely not in LA. (lower Alabama)
It should read: Yeah we have sweet tea. Is there any other kind?
Tips for Northerners moving south
1. Save all manner of bacon grease. You will be instructed later how to use it.
2. If you forget a Southerner's name, refer to him (or her) as "Bubba". You have a 75% chance of being right. (Perhaps "Bubbina" or "Bubbett" would work for the girls?)
3. Just because you can drive on snow and ice does not mean we can. Stay home the two days of the year it snows.
4. If you do run your car into a ditch, don't panic. Four men in the cab of a four wheel drive with a 12-pack of beer and a tow chain will be along shortly. Don't try to help them. Just stay out of their way. This is what they live for.
5. Don't be surprised to find movie rentals and bait in the same store.
6. Do not buy food at the movie store.
7. If it can't be fried in bacon grease, it ain't worth cooking, let alone eating.
8. Remember: "Y'all" is singular. "All y'all" is plural. "All y'all's" is plural possessive.
9. There is nothing sillier than a Northerner imitating a southern accent, unless it is a southerner imitating a Boston accent.
10. Get used to hearing, "You ain't from around here, are ya?"