Got fine for telling a traffic officer to slowdown

I was driving home on the 6 of march 2016 around 12-12:30 when a traffic officer came speeding past with no sirens or the flashing lights so I sped up and told her she needs too slow down. Then she drove behind me and flashed me but I did not pull over it was not her sirens. She then phoned traffic officers further down the highway. I took an off ramp and she drove on so I got on the highway again and they pulled me over. every time i tried too speak they told me I should not have road rage (witch I did not) and obey the rules. They gave me a fine for disobeying a traffic officer because they say she put on her sirens but I saw no flashing blue lights. They told me I am not telling the truth. I asked they lady that was speeding what speed she was driving and she told me she will not tell me because she can drive as fast as she wants. Now I have a fine of R500 for trying too do the right thing. I do not have a name and i could not save the registration number ass i closed the app i wanted too save it on and deleted it by mistake. what can I do to get rid of this fine? I am sick of traffic and police officers that do as they please and the people have too pay.