What do I do? --I live in Pennsylvania and we are expecting 8-10 inches possible 12 " of snow.

[Silent3]

31. The *possibility* of accident or death exists all of the time

This is not a "no-brainer" because a storm, even a big one, doesn't suddenly turn completely safe into completely dangerous. If you never accepted any possibility of accident or death driving to and from a job, you'd have to stay huddled in your house and never go out.

I don't know the exact figures, but we all accept worse than 1-in-milliion odds of dying in a car accident if we drive to various jobs over the course of a couple of decades or more. If that's not unacceptable risk, what is unacceptable? 1 in 100,000? 1 in 10,000? 1 in 1000?

On a per day basis, how much risk is acceptable? Even in a bad storm the risk of a minor fender bender is probably less than 1 in 100 for one round trip of 50 miles or less. The risk of serious injury or death is probably less than 1 in 10,000 or 1 in 100,000.

I still think the OP's client is being an asshole, by the way, but the OP has to make a realistic risk/benefit assessment. Speaking as if this thing called a "possibility" of accident or death is a binary proposition that turns on and off like a light when a storm comes along, and as if no "possibility" is acceptable, isn't realistic.