What is wrong with the local news?

One of the local New York City news stations had a segment about cab drivers using cellphones. Apparently in New York City it is illegal for cab drivers to use phones while driving, even if they're using a headset. The newspeople found that this law is being ignored rather often: cabbies stopped using cellphones without headsets, but still use headsets seemingly just as much as they did before the new law came into effect. The news reporters urged their viewers who witness those violations to call the authorities and insist that the violators be issued tickets.

To me, this is morally despicable advice. There is no evidence that banning headsets increases safety. An average ticket for this sort of offense is about $300; cabbies work for about $100 a day. The news are basically asking viewers to harass the cab drivers without inducing any positive effects on safety. And don't tell me that we live in a country where there's rule of law, so all laws need to be enforced. In New York State it is the law that dancing is forbidden in bars, night clubs and other such places. Do you think it would be reasonable to start calling the authorities about all establishments that ignore this law?