As a lower, working class young white man, I can mark "yes" to every one of the "interacting with police" questions. I've been stopped more times than I can count by cops as a young man (ever taken the Cherry Beach Express?). Even now, as a late 30's professional, a cop tried to jam me up  on a Sunday morning a year or two ago for jaywalking while walking my dog on an empty road and started a power trip on me. You should have seen the rage in his eyes, my dog was getting agitated and the situation could have gone really wrong had I not been extremely polite and cooperative.

In my experience, the only colour cops care about is blue.