any idaho cops here?

I got pulled over the other day for modified exhaust his words were any exhaust that is modified from stock is illegal in idaho, i am from washington no such law. i was wondering if this is true or if he was full of shit

no ticket then he is prob full of shit, there is just usually a decibal reading from so many feet away.

Its true sucks for us if you got a ticket i think you can fight it because you live out of state buuut you have to do it here so that means you have to come back. not sure on that. I had a buddy that was a state cop and he told me that even an exhaust tip is technicly illegal if you follow the law 100%. stuip huh