Many states require you to install a breathalyzer in your car after you get your license back. This means that for the foreseeable future, you will still have to blow into a breathalyzer before your car will start. If you've been drinking at all, you literally won't be able to drive. Guess who pays for this device? That's right, you do. Your local government will give you the privilege of renting it from them at a pretty steep price. Installation could run you up to $200, and then your rental might cost you up to $100 a month.