The Right To Privacy
The Constitution does not specifically mention a right to privacy. However, Supreme Court decisions over the years have established that the right to privacy is a basic human right, and as such is protected by virtue of the 9th Amendment. The right to privacy has come to the public's attention via several controversial Supreme Court rulings, including several dealing with contraception (the Griswold and Eisenstadt cases), interracial marriage (the Loving case), and abortion (the well-known Roe v Wade case). In addition, it is said that a right to privacy is inherent in many of the amendments in the Bill of Rights, such as the 3rd, the 4th's search and seizure limits, and the 5th's self-incrimination limit
As long as respect is shown by all parties, I got no problem with game wardens doing thier job. But power corrupts some people. And some should not be in charge of a lemonade stand, let alone approach people with loaded guns and shoot off thier mouths. But the vast majority of wildlife officers I have met are good, honest people looking out for the welfare of all hunters and wildlife. And you know, and I know, that the few that believe the rules are for other people, can be dangerous. Rather than spoil your hunt, he could have photoed your truck and you. time stamped as most cameras are now, and questioned you later if needed. That is the way I would have handled it if it were my job to do. It is a judgment call, do you show curtisy to what might be a poacher, or piss off a law abiding hunter? Best be polite, and ready for trouble. That is a hard line to walk everyday.
The only real difference between a good tracker and a bad tracker is observation. All the same data is present for both. The rest is understanding what you are seeing.