Living in Germany, I never heard about anyone ticketed for this. The only case really covered by this rule is, that one drives extremely slow under good conditions. Otherwise, in many situations "safety" would be a good reason. And in general, you cannot be asked to drive faster than your car can go. With the exception of the Autobahn and a very few similar streets, the Google car would be legal to drive speed-wise, most tractors are even slower and road-legal.

I'm guessing it's intended as a liability law, like jaywalking laws are. Nobody will ticket you for jaywalking; instead, it'll just serve as the defense of whoever ended up hitting you. "They just ran out onto the freeway right in front of me!"

I was ticketed for jaywalking in Germany. It’s a €5 fine.

Police was hiding in an unmarked car, watching a traffic light in front of a supermarket with the singular purpose of catching jaywalkers. I was crossing the street (definitely not a busy one, more of an access road, mostly to just that supermarket and the old center of town, decidedly not exciting on a weekday at 10pm) while the light was red.

The officer was actually running (jogging, I guess) after me because I had my headphones on and didn't hear him asking me to stop. I thought it was quite ridiculous, but, if I'm honest to myself, this experience actually did make me think twice about jaywalking. I think I'm less likely to do it now.

The fine is not a big deal, though, it's basically the mildest possible punishment.

Crossing on red is not jaywalking as per the American definition. Jaywalking is crossing the street where there isn't a crosswalk or pedestrian traffic light.

Americans introduced me to this concept using pedestrian traffic lights … so I'm not sure how universal your definition really is? (I know it just as any non-legal crossing of a street by pedestrians.)