IIRC, it was stated somewhere that Josh was/is an IT person for a trucking company. I think it was stated that the job at the trucking company was where he was supposed to have been at work at on Monday morning when neither he nor Susan called in missing work.
If Josh was an IT person for a trucking company, he would know all about the tracking devices almost all commercial trucks have on them. He would know that at any given moment, the trucks can be tracked as to the progress. They would know exactly where the truck is, what highway, and whether or not the truck was even running. On a computer screen, you will see a map image and a red spot as to where the truck is. The jail/correctional facility used such a program to track all transportation vans. IMO, he would probably be very aware of the fact that most car rental agencies can do the same. I read an article in the New York Times about most car rental companies being able to know exactly where any of their cars are and even whether or not they had been driven out of state. The article gave an example of a guy having been fined for having driven out of state to a wedding when he had rented the car for local use. The article was written a couple of years ago. So, If Josh knows about tracking devices, he probably would have known that the rental car company may have had this same capability. So, a wild goose chase in the rental vehicle to throw LE off? Maybe.
I have a couple of questions for anyone who may know. Apparently a neighbor heard a car alarm going off in the Powell's garage at or around midnight that Sunday night. One question I have is: Even if the van alarm itself is is off as it would be if someone unlocked the vehicle with a key, would the GPS system have an independent alarm if someone were removing it from the vehicle? If the GPS system was not factory installed, it could have an independent alarm if someone were attempting to remove it. Another question: If the van were equiped with a LoJack, would an alarm go off if someone attempted to remove it? What else would make the van alarm go off when we know Josh had his keys? I can make my vehicle alarm go off using my remote key fob. It may be just as simple as the 4 year old playing with the key fob, but IDK.