How to interact with a police officer(s)

We passed a fair number of cops on Saturday during our essential 70 mile trip to get to the grocery store that's 2 miles from the house! I just smiled and nodded at every officer that I made eye contact with. Plate stickers 2 years out of date and all... :D

What a lawless country you live in!..


Just kidding. I wasn't implying it was a hard and fast rule, but reasons to pick from if they so choose. My kid ran his valiant around town a weeks, with it not quite being, um.. kosher? Cops never said a thing aside form a thumbs up once in a while