Need an ignition interlock device near Mission Viejo? Intoxalock is available at S & H Auto Repair Group, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.South County Auto Repair employs ASE Certified technicians who proudly offer quality service. The South County Auto Repair team can cover all of your automotive needs. They became a certified Intoxalock ignition interlock installer in 2015.