Remote vehicular interrupter

A method of remotely interrupting function of a vehicle, the steps of the method comprising:

• combining a plurality of hardware components into a housing, the plurality of hardware components including an electromechanical relay and a wireless module having a universally unique identifier (UUID), and service wires;
• installing the housing and wireless harness within the vehicle such that the relay is installed in an electrical control circuit (ECU) controlling one of:
• a vehicle starter, a throttle, and vehicle spark plugs;
• initiating an ignition request using a mobile software application on a data processing device (DPD) in logical communication with the relay via a WAN, the ignition request comprising:
• a unique identifier exclusively associated with the vehicle, GPS coordinates, and one or more enabling timestamps and one or disabling timestamps;
• creating one or more encrypted ignition instructions consisting of less than all of the information contained in a corresponding ignition request;
• relaying each encrypted ignition instruction to a vehicle exclusively-associated with a single encrypted ignition instruction;
• storing all ignition requests and encrypted ignition instructions in persistent computer-readable memory;
• energizing the relay in response to receiving an ignition request;
• geofencing the vehicle within a predetermined geographic area such that the vehicle is automatically disabled when the vehicle exits the predetermined geographic area;
• and
• starting the vehicle at a time indicated by an enabling timestamp in the ignition request;
• disabling the vehicle at a time indicated by a disabling timestamp in the ignition request.