Lived in Switzerland and drove the autobahn quite a bit. I’ve been passed while driving 140 mph (daylight, clear road - very long sight lines), highest I ever drove was 150 though my wife was very unhappy (the kids loved it). Great roads, built for people that can follow the rules and avoid getting into accidents. My understanding was that if you were in an accident, you lost your driver’s license for life.
Where they had limits, strictly enforced. I received one German ticket - photo, for something like 40 in a 35 zone (rural road). Cameras were all over. The Swiss really liked their cameras, and were very strict.
I have very fond memories of driving the Autobahn while stationed in Germany. And like you, received a ticket for going 5 miles over a city speed limit. At that time, the officer approached your car with a wallet not a ticket book. They made you pay up right on the spot. Ticket was doubled if you didn’t have the cash!