The issue here wasn't the snow or the ice, or the drivers for that matter. You have a metro area with roughly 4 million people who normally spread their rush hour out between 3PM and 7:30PM.
The Fulton County school district, along with Cobb (where my kids go) and just about every other county had school that morning and then announced early release anywhere from 1 hour to 5 min. before it was going to happen, causing a mass exodus onto roads which hadn't been properly worked on. This caused the plows to not be able to salt/sand/plow because millions of commuters were all on the roads at once.
We could have had a million sanders and stuff and it wouldn't have helped. Personally, I'm from Ct and don't have a problem driving in snow or ice. I was in my car for over 12 hours because of this jamming. Eventually I found the bottleneck which was an unprepared hill where I simply got into the oncoming lanes and drove right up. I was home from that in less than 10 min.
So, laugh if you must, but it was a failure of the school systems and local governments not wanting to burn a school day (the rule here is if the kids eat at school, it's considered a valid day).
AJ