Originally Posted by M3maniac20
1) I am partially wrong on that. They have to have some sort of reason for following you-and in this case that would be the exhaust. But unless he had a decibel meter with him, how could he write the ticket for that unless he just automatically knows? But I don't know all of the details on this or have heard the exhaust myself to make any firm judgments.
The whole situation is rough.
In CA an officer can follow and cite you if they believe the exhaust is outside the limits. At that point you have to go to a referee station and have it measured. Nothing the cop did was illegal or even suspicious.
Then there's the removal of the secondary cats which is another illegal move in CA. The car wouldn't even pass the visual portion of the smog check.
Really, the OP has NOTHING to complain about here.