Well, when I left at lunch time, I thought I was beating the crowd. The problem was that everyone (including schools) left at once, which meant the roads were over capacity and they couldn't get through to clearance the roads.
The other problem is that it was 60 degrees and sunny yesterday, so all the snow melted when it hit the pavement. But it's about 15 degrees now, so it re-froze very quickly. And with no traffic moving to keep it slushy, it immediately turned to sheets of ice.
I almost stopped at 9:00 right before I got on I-285, but I stubbornly continued home because I have a dog who needs food. So when 285 turned to complete gridlock around 9:30, I just ended up stuck on this on ramp.
Excuse me if I ramble, I'm pretty tired at this point.