Just FYI, I have a good client in the large white office building at 2400 Century Parkway, right next to I-85 and across from the Marriott. A couple of years ago the CDC decided to lease a couple floors in that building. Since then, there has been private security with metal detectors and x-ray machines at the main entrance to the building. Consequently, one cannot carry there. My client's floors are privately owned and occupied. Ultimately it's like the aquarium - no GA criminal code problems unless you go to the CDC floors, but they choose to manage their building for no firearms. I'm guessing you would be asked to leave if they found one on your way in.