Parking tickets in San Francisco can result in serious consequences if you receive five or more tickets that remain unpaid. For instance, you may be unable to register your vehicle with the Department of Motor Vehicles if you have five or more outstanding San Francisco parking tickets. Additionally, your vehicle is eligible to be disabled with a "boot" device, or even towed, if you fail to pay five or more San Francisco parking tickets. If you are unable to pay your San Francisco parking ticket fines, however, you are eligible to enroll in "Project 20", which is a community service program through which you can work off your parking ticket fines. You also may qualify for a three-month payment plan by signing a contract, and paying an administrative fee. However, "Project 20" and payments plans are not available options to you if your vehicle has been "booted" or towed as a result of your San Francisco parking tickets.