I had a run in with a car today, disobeying about 3 rules before almost cleaning me up on anzac pde. Held in the horn and jumped on the brakes and got close enough to the bonnet to see blue and red lights (switched off) on the front grill. It was an unmarked commodore. When I got a chance to stop and take a pic of the car she threw on the sirens and said I was abusing her and wasn't allowed to take pics of her car yada yada yada, but the thing that got to me most was when she said "I can go straight from there". At that point i stfu and got back on the bike, to watch the cop do the same thing as the last intersection (go straight from a left turn only lane). About 5 minutes later just before I got to uni, a taxi dived across 2 lanes to get next to me, before his passenger handed me her card as a witness. Who should I write the complaint to, and would it actually achieve anything?