US Patent 7305293 Vehicle tracker including input/output features and related methods

A vehicle tracking unit preferably includes a vehicle position determining device, a wireless communications device, and a controller connected to the wireless communications device and the vehicle position determining device. The controller preferably cooperates with the wireless communications device to generate a sequence of alert message notifications for the user, and for canceling any remaining alert message notification of the sequence based upon a cancellation command response from the user having already received the alert message notification.