Sick? Funny? I'm going with funny.

That is hilarious! I want to drive the highway and do that now..

This not so much, and that’s the same sort of reason I find the OP not so much. Yeah, yeah think of the children, but I don’t want to try explaining that to a kid who’s suddenly screaming in the back seat and I have no idea why because I may not have noticed it while paying attention to the road. You don’t know who will see it, and though amusing in an adult fashion I’d rather not terrorize the children who might see it. (Now if it were part of a crazy holiday movie..)

It’s December in Montana. The dead deer was thoroughly frozen and well-preserved.