Need an ignition interlock device near Rogersville? Intoxalock is available at J & J SERVICE LLC, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.J & J Service is an automotive electronic equipment supply and repair company located in Rogersville, TN. We can help you with all your automotive electronic needs, in addition to ignition interlock installation. We've been a certified installer for Intoxalock since 2011.