I sorta had a similar.
Whizzing down the freeway from Ocean reef, pass a motorbike cop stationary on the hard shoulder.
By Whitfords he had caught up. (Had watched him approach.))
Knowing he's there i stay on 100. Then his bloody lights come on pulls me over and trys to bust me for doing 110!
I say no... refuse to pay,
go to court twice. once to organise a date for the 2nd?!
On the day I present my RAC speedo check (was accurate)
and say Yes i saw him catch up yes i knew my speed was 100kmh
His "proof" was:
Him: "did you pass those cars doing 95Kmh?"
Me: Yes i did
"well you must of been speeding then!
Even the judge at this point said enough. waste of time. "dissmissed!"
(actually alot more was said, but thats dramatical license for you)