damn that sux but on the window tint thing here in the uk its an on the spot fine of £30 gbp and they remove it there and then (making a real mess of it too),But its only the drivers and passengers window they take off as all the rear is ok here. 25 percent tint max is legit here on front sides.
As for noise a system like steve's would get a £300 gbp fine here
it's if you ask me. just another way of makin them money