I've just got home from a week vacation in the Boston area (we're from the UK) I saw more people pulled over by cops in one week than I've seen in the past year at home. Not exaggerating. We stayed on Nahant for a few days and the causeway had someone pulled over literally every time we crossed it.

That said, I also saw more cops in one day than I see in a year at home. You guys have so many police.