Yeah mate, it has become fairly ridiculous down under lately. NSW has removed all the markings from their roadside cars and it's not until you pass the little "your speed has been checked" sign up the road you know you've been done. And they have those mobile cameras cruising up and down the freeways as well.
In the ACT we had the older box-style red light camera that just snapped an image on red, but they always had a "speed and red light camera ahead" sign leading up to them so when they quietly switched them out for the odd vertical oval ones with actual speed cameras in them they didn't have to tell anyone. Ask me how I know?
And when the ACT introduced number plate scanning cameras onto Police cars years ago, the justification was for hunting vehicles of interest used in violent crime, gang members, known criminals etc. Which quietly got expanded to include those evildoers who forgot to renew their rego...