Plus add the fact that not many down here know how to drive in the snow just compounds the problem. People trying to drive up a hill covered in ice just to start sliding backwards running into cars behind them and now that road is shut down with a pile up or jack knife. Others start to turn around and get stuck.....now what? Get out and walk.
It was the multiple 18-wheelers jackknifed every few hundred yards which brought everything to a halt, apparently. Guess those truckers don't know how to drive. Maybe need driving lessons from Snooki and her jersey guido buds.