I can't say I've ever worked for a company that cancelled runs because of winter weather. But, back when the wife and I were pulling for Burlington, we picked up a load of hazmat north of Philadelphia, and were taking it to NC. That was the year when NC got their worst snowstorm in recorded history. She was driving when we hit the snow, and by the time we stopped at the J at Haw River, I was behind the wheel. We had gone past other trucks that spun out going up a small hill and figured that was far enough.
I called dispatch and told them we were hanging it up. "Are you sure you can't run? Your appointment time is tomorrow morning." I told them it was hazmat, and asked if they wanted the liability in case of a spill. (Phosphorus tri-chloride is some pretty nasty stuff. Both corrosive and an inhalation hazard. 5 mile evacuation area down-wind, must be removed and can not be washed away. exactly the sort of stuff you want next to you all the time.) Tlhey asked for the UN number and I told them. Within 3 minutes, they were back on the phone, telling me to do whatever I thought best. The next day, I called the customer and was told to wait one more day. They could not insure that they could unload it safely.
I never heard another word about it. The load was safely delivered and unloaded, and dispatch never said one word about parking the load.
And, for the ladies reading this... I was told that customer mixes this stuff with animal fat and a few other ingredients, then sells it to Helene Curtis for MOISTURIZER for MAKE-UP. I still picture all the women lining up at the cash register and paying good money to put this stuff on their faces.
But, there is a very large difference between a smart driver and an intelligent driver...
A smart driver knows the weather conditions, the equipment he's driving, and the load he's pulling. He knows what he must do in order to make it to the destination. Chances are, he will pull any load, through just about any weather conditions, to almost any destination, and get it there.
The intelligent driver knows better than to challenge it.
In my career, I've been both.