No, but neither do we know that open carry isn’t legal in the state in question.
http://www.georgiacarry.org/cms/georgias-carry-laws-explained/frequently-asked-questions/
(Excerpted)
I Do Not Have a Firearms License. What Can I Do?
Q: Can I carry a handgun openly, without concealing it?
A: No! Georgia is one of the minority of states that requires a firearms license to carry a pistol openly outside of your home, car, or place of business.
Please be sure to read the history of Georgia’s licensing law and find out why a license is required to carry a handgun openly. It is not what you think.
Also,
Method of Carry
Q: Do I need to carry my firearm concealed or may I carry openly?
A: Under the law, a firearms license holder may carry a firearm openly or concealed in any location that is not off limits. However:
It is quite possible that a given law enforcement officer in a given jurisdiction may not have been properly briefed on (or may not have understood) the changes in the law brought about by HB89 and thus may still choose to challenge or even arrest someone carrying openly in the new locations, believing they are doing the right thing under the law. The legality of detaining people openly carrying firearms is the subject matter of two federal lawsuits filed by GCO.
Interesting stuff at their site, georgiacarry.org