Traveling in a private conveyence

I have a relative who gave me a car as a gift. It is registered in his wife's name the license plates are in her name and insurance. I am traveling in it currently now let's say I get pulled over (until I am able to get private plates, private Auto bond, and put the sheriff and some authorities on notice of status for a do not detain understanding with them) I simply would utilize my knowledge and understanding from what I learned  from the redemption manual series, and my public servant questionnaire, and other docs to verify who I am for them, would you guys do the same thing in the situation or would you do something differently? Correct me if I am incorrect.