Police ticket speeders, but focus on those greatly exceeding the speed limit and creating a dangerous situation. Likewise, this new law is just another tool to help police make the roads safer. Anyone driving with a modicum of sense will be left alone by the police, so feel free to move to the left to let in entrance ramp mergers even if you hew to the speed limit. The chance of a ticket will be very low. But if you decide to stay in the left lane and drive next to a truck for 5 miles despite 40 cars piled up behind you... then there will be a consequence to help teach you that unsafe driving needs to change.