The sergeant watching the camera probably didn't have any constables to send around to deal with it.
On the other matter, in the past in NSW when the response from constable plod has been less than adequate, in my opinion, I have written a letter to the commissioner. Frankly, it just gets someone senior to do a snow job on you, but I have had one good success where the toe rag gained increased his criminal record, broke parole and went for a holiday at the government please. It was some satisfaction.