Oh c'mon Ray...
From the explanation, this is a clear cut incidence of ego over morality. She said she pulled him over for emissions equipment and then gave a speeding ticket when she realized she was wrong...
The speedometer is not even relevant.
If it was, she would have stated the speeding issue right off instead of the BS exhaust check.
Check my bio, I fully understand and respect authority, but not when it is ego or position driven...