can't answer the question from experience.
my experience was a little different.
so lady dobbed me in to the police cause I gave her the finger.
I was waiting to cross burwood rd with my car. after edging forward to see around the bus, got a gap and moved, she stepped off the curb with her kid, not looking to the left where I was comming from even though the street she was crossing was a one way in the direction I was heading.
I beep as I keep going as I swerve left as it was too late to stop, she swears, I give her finger.
2 days later, cops arrive at my house asking for me.
basically had to go to the police station when that officer was there (happened to be starting at 10pm for f*ks sake) and make a statement.
he told me that Every single complain made to the police MUST be followed up.
so they will definitely come see you if you have been dobbed in.