Good observations. A few data points (from a white citizen of the US). 20 years ago I saw a police officer as a friend. If I was lost, I would ask one for direc

Good observations. A few data points (from a white citizen of the US). 20 years ago I saw a police officer as a friend. If I was lost, I would ask one for directions, help, etc. Now I generally prefer to ask a sane-looking stranger. I saw other folks, including military officers, express similar feelings. I think that composition of the police has changed. Before, it was mostly local boys who joined police after school. They view random strangers as mostly friendly and have a "do not bug them unless they need help" mind set. Nowadays, there are strong preferences for recruiting vets, which often means time in a combat zone area with distinctly unfriendly locals (and possibly PTSD). They see random strangers as potential threats and this can affect all interactions. Independently, when you are pulled over, especially on a highway, it is usually a local cop who is encouraged by his town to write tickets that help local budget. They are likely completely professional and probably even friendly, but by default we are at the opposite sides in this interaction. Extra information on my side does not hurt.