This sort of thing is getting a bit too common though, twice I've had an unmarked police car driving on my bumper revving, then revving next to me at stop lights....yeah whatever!
Of course though speeding, failure to indicate and tailgating is OK if you're in a police car
A classic example of how distorted it's getting is the policeman on the Sunshine coast that crashed his car doing 175kmh+ chasing a guy that was doing 126Kmh in a 100 zone. Seriously step back and think why are you trying to enforce that fine...speed kills...OK let me go faster and try and catch him for this relatively minor excess of speed compared to my lunatic effort!!!
Another classic, my brother was fined for going through an amber light....by a police car that had to go through a red to pull him over!!!