Need an ignition interlock device near Stephenville? Intoxalock is available at Dewayne's Automotive Center, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.Intoxalock Ignition Interlock has more than 2,500 service center locations nationwide, more than any other provider! If you're looking for a certified installer in Stephenville, TX, Intoxalock has you covered. Dewayne's Automotive Center is conveniently located at 855 W Washington St and offersmany automative services, all performed by a certified technician staff. Rest assured that you will receive fast, quality service, from install to oil change. You'll be able to get back on the road immediately after install and the on-site staff can help you with any questions about device use. Call (254) 870-9792 today to schedule your interlock device installation with Intoxalock, voted the most trusted provider. With 25 years of experience and 5-star rated customer service, we've got this.