There's an elk in the pick-up

Um yeah, So I came home from school and I checked for parking right near my house and there was a pick-up that had some kind of antlers sticking out of the bed. Now I know I am new here, but I'm just not sure that it is ok to have dead animals hanging out in the back of your car. Ok so I tried looking up the rules on roadkill (right because if he was going to eat it, it wouldn't be in the back of his truck) but I didn't find anything. Anyways, it stunk! I took a picture... I know, I felt kind of Shady, but what do you do? Weird right?