NETWORKED INTOXICATION VEHICLE IMMOBILIZATION

A vehicle immobilization system includes a detection element (346) operable to detect a level of an intoxicant in a user's breath. A control module (328) is operable to receive a signal from the detection element indicating the level of intoxicant in the user's breath, and to selectively restrict operation of a vehicle based on the level of intoxicant in the user's breath exceeding a threshold by selectively sending a signal via a connection between the control module and the vehicle using a data link connection such as an Onboard Diagnostic (OBD) port (102) of the vehicle.