Don't get me wrong, I think your reasoning is sound and I think I could argue your view with pretty good confidence. Your example is quite good and I like the idea of taking the totally opposite driving circumstances to prove the point.

but.....

I took the premise as "there is a lot of wasted space on the road and we can reduce it" with a methodology of "removed snow will show us what is not wasted". So, I thought the premise was hogwash, but the execution fit their twisted premise.