Just my 2 C on that one.
You guys do not even know how lucky you are.
Being a German who has the pleasure to live in the US (and travels back and force) I have gathered some experience with LEOs in both countries.
Generally:
1) Policemen/women are not known for having any kind of humor
2) Germans are not known for having any kind of humor
3) What do you expect from a German police officer (do the math)
Usually they flash you with a traffic cam and you get a ticket mailed in. No discussion and about no legal way to escape that.
If you were too fast (>25km/h = 16 mls above speed limit) you become a pedestrian for a month, with bad luck for three months.
My experiences in the US, expecially in Wisconsin are WAYYYY better.
I was speeding, got cought, got a verbal warning - thats it. Actually I stressed this "Germans are always fast drivers thing" because of the Autobahn and Porsche and Michael Schumacher and so on... -it worked
Three month later, speeding again with my bike, got cought and (chit hits the fan) SAME police officer.
He smiled and kind of apoligezed that this time he HAS to give me a ticket.
End of the day - we "high five" us when ever we see us on the road
and in all honesty since then I drive slower (some 5-5mls over but not more)