Agree with Bryan,
This is a case of lazy cops having a spak attack.
I drive over the Mt. Glorious route regularly (in a 4WD) and have friends living on the mountain. Hoons on 2 and 4 wheels are not uncommon, as are media reports of fatal and serious accidents on long weekends.
About a month ago I stopped at the top cafe for a bite, there were about 40 bike riders doing the same. Majority were respectable law abiders with well cared for machines. Drop in any sunny Sunday around mid day and you will find the same types taking a break at the cafe.
Time to call in the media hounds and expose this type of lazy police victimisation. But you would need to gather some evidence of those defected.