Stump. I know how you feel, but unfortunately, this is 2008 and not the 70's. We have to get along.
In Wisconsin, the law may have recently changed, but even when the law was in effect, we used to teach the new hunters (and their dads...) to put the animal in the back of the truck and have a portion of a leg exposed. It meets the letter of the law.. it is in plain sight, allowing a passing DNR agent to ask questions if they want (likely won't). This was encouraged by the DNR warden in our group to allow us to take a slightly low... but not invisible... profile.
Even if you don't like the idea, keeping it covered keeps it clean and out of the sun, etc so it eats better when you get to that. If you drive far, I would stop at a filling station and buy a bag of ice to stuff in its chest cavity, making sure it won't fall out on the road.
Nope.. I am proud to be a hunter, and not at all embarrased or scared to let the world know it, but I think nowadays we don't need to shove it in their face.
Later
ChuckC