Messy morning commute Friday; Cold weekend

Overall we're not expecting much accumulation. A coating to 2" for most with some higher amounts possible in the hills. But the poor timing of the snow and the rapidly dropping temperatures could lead to icy spots out on the roads, school delays and a slow commute.
How icy? Forecasting weather is hard enough. But forecasting road conditions is even more difficult. Will treatments work? Highways versus secondary roads? Will ground be wet as temps drop below freezing? Hope for the best but we hav