(Please read this with me talking in a quiet, friendly, non-confrontational tone of voice.)
Blast, you've got me there! Since at the time I was a Sergeant First Class in the US Army, I was just a "barracks lawyer." And, I probably was lucky he didn't impound my vehicle as I didn't know he could have forced me to submit to a vehicle inspection. I was in dove hunting garb and had a cased gun in plain sight. But, the young Game Warden did ask if he could search my vehicle...he didn't demand. He asked, I refused. Then he questioned why I refused. That's when I went off and started dressing him down because of his dealings with the old man. Somewhere in that discussion I did tell him I knew legal shooting time was noon. So, the young Game Warden likely suspected I didn't have any illegal game in my vehicle.
That was the only time I've ever been asked by any law enforcement officer if he could search my vehicle and that's why I posted my one experience. As an avid bird hunter, I've encountered quite a few Game Wardens, but that was the only time I've ever had an issue with a Game Warden. My "barracks lawyering" was not about his legal authority but about his behavior shaming the old man in front of the young boy. Blast, I do hope you're not defending the young Game Warden's conduct with the old man.