Need an ignition interlock device near Derby? Intoxalock is available at L&R Automotive Inc, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.L&R Automotive Inc. is an Auto Value Certified service center. All of L&R's technicians are ASE Certified and they offer a 24 month limited warranty on both parts and labor. Additional benefits include: roadside assistance, battery jump start, and lockout assistance. They have been installing Intoxalock ignition interlocks since 2011.