Before you (continue to) mock the Hothlanta situation as a result of GA drivers being stupid and/or some weird traffic tie up that could never happen here, take a look at this picture.
This is a screen-cap the Twin Cities, taken this morning (Jan 30 '14) just before 8:00am. Not only is much of the map red, there's even a whole bunch black. Red usually means stand-still; black indicates something along the lines of people aging at an accelerated rate.
What caused all of this? Barely 2 inches of fresh snow. You read that right: A light snowfall. In Minnesota. Crippling a morning rush-hour in a large metropolitan.
This is this is the normal consequence of snow + heavy traffic, in in a city that is arguably the best prepared of any in the United Sates to deal with it. What's different hear is that this traffic will eventually muddle through, and the 1000+ active snowplows will get the infrastructure in the best practicable shape in no time.
So, what's the point here? While Atlanta lacks the afore-mentioned snow-plow army to react to the situation, the situation itself (e.g., crippled traffic) is not the result of a bunch of dumb yokels on the road. If you did/do have that opinion, it will fit nicely in your ass.