I came across a letter mailed to a family member from the local police station stating that a car displaying plates registered to them was seen going 7 kph over the limit. It states that they should make sure that whoever is driving the car, does so more carefully and that no other action is necessary.
I am thinking this is a great way to make people more aware of safety without wasting the officer's time or tying them up in court for trivial offences.