Thanks for that. Never dug in that deep. That is indeed a proper way to measure sound and note that they define it based on vehicle weight and at different speeds. I have absolutely no problem with that.
However, the way the law is enforced, they go and give you a ticket without a proper measurement of your “violation”. That is the equivalent of giving a speeding ticket from a cruiser that has no radar, no VASCAR setup and no speedometer. Not really fair and in my opinion just plain unAmerican.