This is for sure, if they want it bad enough, they will get it.
I've NEVER heard of anyway to over ride PATS without the right software, in fact, I bet its nearly impossible. The only possibility I could see is if the thief switched out the appropriate modules with ones already programmed for a key they have. That would take quite a bit of time though, and they still have to break out the lock cylinder. I think your lo jack route is good. The pats system is pretty damn secure, the codes transmitted are rolling, in other words the code that worked on this key cycle will not work for the next. There thousands and thousands of combinations the system will rotate through.
Be careful with remote starts. Depending on how they operate, they can be the worst anti theft thing you can do on your vehicle. All after market remote starts have to simulate the chip code to start the vehicle. Some companies will actually use a programmed chip out of a key. This hands the code right over to the thief, all they have to do is look for it inside your truck.
This is not entirely true, because its not that easy. I've been in the business for almost 11 years now, 8 of which being a master tech for multiple manufacture lines. As of a few years ago, in order for any parts department to cut a key, they must have a form of the owners identification that matches the registration to the vehicle they are cutting for. If dealers get caught cutting with out the proof then they get in HUGE trouble. If the parts guy did cut one for a thief, the key still needs to be programmed before it will start the truck. So now you need a mechanic to be in on it too. This would all have to happen when your truck was in service at the dealer. You would have to have a ring of people in on it, I just don't see it being that likely. A roll back would be easier.
