I mentioned this the other day but maybe his vehicle has a black box type computer. If so, then maybe they can analyze the stop/per miles driving, hard breaking and mph and the mileage between each slow down (going backwards from the mileage at the time the vehicle was secured.) A really good analyst might be able to map out a route based on the speed limits, miles driven and any stop signs or lights as well as how long the engine idled. Then, if he had a cell phone, that data can be compared to the pings. I would say they might be able to do the same thing with Alexis' car. (fingers crossed LE can get a vicinity for finding Alexis.)