The TL;DR here: Americans, wherever they go, see driving as a right that is unwavering. Europeans (especially northern Europeans) see it as the privilege it is, with consequences for reckless behavior.
I've been in a Euro spec car in the last year with all of the warnings and such - even rented it in Munich, so it was very much in German driving mode from the start. But if i drove the posted speed, no worries. It's a behavioral change from driving in the States but the adjustment didn't take long. And to be frank: it was pretty low stress.
And I did get a speeding ticket in Geneva, on the way to returning the car. I was caught going 2 km/h over a posted speed, which incurred a 40 Swiss franc fine (which I paid). As a person whose work involves safe street advocacy, I was pleased to see no wiggle room in their photo radar system. It keeps folks driving the posted speed - not the typical 11 mph (18 km/h) allowance here in the States.
One other thing to realize: most European drivers are far more skilled than U.S. ones. Driver education and licensing in most EU countries is comprehensive. Licensing tests are, more often than not, failed the first time because they test a broad range of skills in both the written and practical exams. Whereas in the U.S. we basically give away licenses with cursory exams and drivers seldom ever have to re-test to renew their licenses over the course of a lifetime.
To the OP: sorry it was so annoying but it's part of engaging with another culture.
Just my $0.02 - YMMV.