Lot security is of paramount importance to any dealership lot management system. Unfortunately, vehicles are stolen off of dealership lots all the time and once the car is gone it can be nearly impossible to track down. These thefts result in thousands of dollars of inventory, and subsequently, revenue being lost to dealerships. dFence operates differently, stopping the crime before it starts. Our groundbreaking d3 system tracks stolen vehicles in real time, sounds a 100 db alarm if a glass-break occurs, and snaps photos of the perpetrator inside the vehicle as the theft is happening. Moreover, the dFence d3 system gives the dealership the capabilities listed below.