They can only give you a ticket if you live in that state, and they need a decibal meter to give you a correct indication of what your pipes are. Not to many cops carry this meter with them.
I was in the city last night all over bleeker street .ave of americas with 10 of us all on harleys and choppers the cops were real cool they were even taken pics on our bikes.And we really ripped it up around there.