If road-kill was good eating, the local food banks where I live wouldn't suffer so badly in the winter months, someone seems to clip a deer on a weekly basis up this way.
There was a year that saw B.C. lose a LOT of moose... to trains. The creatures would seek the respite of the lack of snow (it was a heavy-snow year) on the tracks, and get nailed by a train.... and none of the creatures were fit for eating, it was so sad.