Abstract: A vehicle immobilizing device includes a lock, user interface, memory configured to store an unlock code, and processor. The lock has a latch mechanism and the processor controls movement of the latch mechanism from a locked position to an unlocked position so that the immobilizing device can be removed from a vehicle. A person installing the immobilizing device on a vehicle utilizes the user interface to enter and store an unlock code and an identification code in the device memory at the time of installation. Upon payment of an outstanding fine, a vehicle owner is provided with an unlock code. To remove the device from the vehicle, an unlock code is entered via the user interface and the processor causes the latch mechanism to move to the unlocked position upon determining that the unlock code input via the user interface matches an unlock code stored in the memory.