[BwanaNdege]

I doubt the law will or can be enforced against anybody driving the speed limit in the left lane.

You, obviously, have never driven I-285!

[no-s]

You, obviously, have never driven I-285!

I always thought the speed limit for Atlanta sections was set by the highway number. So obviously i-20 at 20mph, I-75 at 75mph, I-85 at 85mph, and for I-285 and GA-400 - purely hypothetical as far as concerns most street-legal vehicles.