Extra thoughts.....
I worked as a civvy in our Ops Room taking 999/101 etc calls and we managed incidents. I had several from people unhappy about being done for minor traffic offences. I can't recall any wher the attitude test was failed for "marginal" transgressions. Not accepting their error/arguing led to "suitable words of advice ( a bollocking) changing to a ticket.
A colleague was out on his bike on the A40. He and another biker were "getting a move on" when they passed a hand held speed gun. They pulled in at a layby further on and decided to go back. The WPC gave them a huge telling off but thanked them for returning. She reduced the speed registered to 69 ( it was actually 90+ after braking) so they would do a SAC. A few weeks later she popped into Ops and recognised my colleague. We had a great chat. At the time of the incident she was unaware he worked there so no special treatment. My mate made her a coffee and biscuits.