That particular camera has gotten me a couple of times, think is was around CHF40 each time.
The speedo on a car or bike may not legally indicate a speed lower than the speed you are actually traveling at, so most read around 7% fast. Depending on the size of your tires, inflation and possibly wear, you can generally add another 2-3%, so now you have 9-10%. Say you are driving an indicated 140kph, that might be a real 127.4kph. Subtract the 6kph allowance and you are maybe at 121.4kph, which might cost you CHF40, at least it did for me, guesstimating over my thumb.
...oh, and that one fires forward, in your face.