A tracking system includes a vehicle tracking unit and a monitoring station communicating
therewith. The 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 send an alert
message. The monitoring station may include a user interface for generating a sequence
of alert message notifications based upon receiving the alert message sent from
the vehicle tracking unit, and for canceling any remaining alert message notification
of the sequence based upon a cancellation command response from a user having already
received the alert message notification.
