I agree but it will wash right off after the 1st few runs. I think the road junk would be minimal and only on days it's snowing.
Problem is, Shames is my local. It takes me just about an hour to get there and it's just graded dirt, snow (no paving) for the last 13 kilometers. I'm thinking all the sand and salt between here and there also makes for some shitty dirty gear. Even worse, it will be like that when you get home too. Then you have to go to the car wash and hose it all down before wiping it all off (while frozen) and stow it for the next trip.
I'm thinking this may sucketh a bit to mucheth.
Maybe I need a roof rack or at least a closed cargo box for the hitch? Hmmm...