It sounds to me like he was trying to sell you the Triad security system
which dealers install to protect their lot.
It is a wand type device that you must put near the antenna (usually near
the light) that will allow the vehicle to start.
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.