Low Cost Interlock offers the easiest, cheapest, fastest, most reliable ignition interlock device (IID) for your car. Our ignition interlock system allows you to effortlessly achieve your ignition interlock restriction and get you back on the road. Visit Polarizauto at 6250 Bunker Lake Blvd Ste #213 for the most convenient interlock installation in the Ramsey, MN area.