from what i have personally seen it (the GPS) is nothing more than a TOOL. Just like a scan tool there still needs to be an interpretation, of the data. yes there are ways to fake a GPS out. There are ways to fake out a RFID, There are even ways to fake them **** phone gps units. but when the boss asks why you went off of route, and you told him customer 'Z' wants to buy a new (or used) truck, or even a full service plan. do you think you have to worry? What do you think his response to a "three martini lunch (out of route) would be? if it resulted in a multi unit sale? the people who buy into the GPS unit and other methods have bought into the scam.... we will watch your employees for you, because you cant figure it out during the interview process. Just be who you are and keep smiling