One way to avoid being stopped in Nashville for either a DUI offense or a drug offense is to remove the window tint on your car.  Metro Nashville Police can stop a car or truck for a  traffic violation. The window tint under Tennessee Code Annotated 55-9-107 provides that it must have a visible light transmittance of less than 35 %. So buy sunglasses and remove the window tint. a violation of Tennessee’s window tint law gives the police the right to stop your car.