A Georgian Vocabulary Lesson

Having lived in Atlanta for almost ten months now (!), we've come to notice a number of regional differences between Georgia and Tejas (duh). Yesterday morning, Travis and I were reflecting on some of the differences in terminology: some that confuse(d) us, some that make us laugh. For example...

"Call out" v. "call in." Travis' coworkers say "So-and-so called out sick" instead of "called in sick." Isn't the person calling IN to work to say they're sick? I guess you could say that they're trying to get OUT of work...but I still don't think it makes as much sense. 

"Parking deck" v. "parking garage." This makes sense. It just sounded weird at first. 

"Tag" v. "license plate." Someone said this to me and I had no idea what they were talking about.

And the best one of all...

"Package store" v. "liquor store." What package? Is it because you leave with a paper sack sometimes? For at least the first month we lived here, we were driving around going, "There sure are a lot of places to mail stuff here..." 

Just call it what it is, son. Liquor. 

Anyone have other examples or want to defend these alternative terms? Are they really representative of Georgia, or have I just encountered an unusual crowd? :)