Why?

The other day I was nearly bit broadside by a county road truck. The main reason for this was because said state employee was doing 70 mph on a country road. For those of you who don't like English measurements that's 112 kph.
Why was the road truck out there in the first place? Well, the county I live in is divided into 2 parts by the Cumberland river. Half of the county on the south side and half on the north. All, and I mean all or the services are in the south. To get to the north side, you need to spend 1 hour driving through the surrounding counties to get to a bridge. I understand why he was speeding. He was trying to single handedly cover an entire county that was an hours drive from his base. That doesn't justify his reckless driving, but it does explain why it happened.
There must have been a good reason for him to be there. There was. He needed to clear the roads after the snowstorm the night before.

The ice you see is on my windshield. As you can see by all the snow, they needed to get the snow plows out and running or no one would have been able to get anywhere. And yes, this is the road that the truck driver though 70 mph was justified on.