"In this case, the cost of a snowplow-equipped vehicle is non-trivial, and the vehicles are property of the drivers (typically taxi drivers who want extra work during the winter)."
Typically!! Boston cabs with snowplows? Ha ha... sorry, but that's preposterous. Typically, cabs are crazy busy for their entire 12 hour shifts when it's snowing transporting passengers. I drove cab in Boston for 8 years and the image of what you suggest just made my sides hurt from laughing. Thanks, I needed that.
yum -c /etc/yum-SomeSingleRepository.conf command
And don't forget "Google is your friend". Try applying that to MS!
Here's an icon I just whipped up.
http://www.boston-express.com/firebird2a.png