I had a friend who lived and worked in a rehab home (he started there to get sober himself) and they provided transportation for work, and essential trips. This is in a city much smaller than Atlanta, so I'd suggest you beat the bushes for any and all information on rehab homes and programs.
I'll bet there are ways to find one, and by providing service hours, etc, get some of your transportatin needs met, as well as learn many other useful life skills from those who are on the same journey.
Your recovery has to be the number one priority, your life depends on it. More important than where you live, any current job you have, etc. If and when it is, you will do whatever it takes to get and stay sober, even if that means moving to where the resources are or finding a different job, friends, etc.
Where I live, folks in your situation get mopeds and scooters