Frank, it's been my experience that if it's just snow, especially if it's as warm as it was yesterday when we were getting the snow (31F), it's not much of a problem; traffic keeps it beat off the roads, although the newspaper this morning did say there were a number of fender benders, delayed flights at D-FW airport, and some power outages. However, if we have the freezing rain and ice, it's a real circus. It took me 3 hours to get to work one morning (22 miles) because I had to stop so many times to help push other vehicles out of the way before I could get through. So a good ice storm can just about bring everything around here to a halt, but usually doesn't last more than a day or two. You know we have no snow removal equipment in this area (I think D-FW airport got some a few years ago); but they do spread sand with a small amount of salt mixed in anytime we have ice on the roads.
I think in the nearly 25 years I was on the police department, I drove a police car with tire chains 4 or 5 days.