For getting the truck back fast, a
LoJack and a
Cellular GPS tracker is really the way to go IMHO. GPS tracker can send an SMS/email when your truck is started or moved outside of a geofence (a "line in the sand", on an electronic map). Once you confirm the truck is stolen, immediately call LEO and report it, they will file the report with the National Crime Database, when your VIN goes into that system LoJack's system will ping your vehicle's transponder and it'll beacon out to any LEO car equipped with a LoJack receiver. Even without full real-time GPS data (once every 30/60 seconds) you can give LEO a general 10-Mile area the car is in and that'll get their receivers well within range of the transponder - they'll take it from there.
If you ever use your truck out where cell towers and a good signal are rare, look into a satellite (Globalstar/Iridium) GPS tracker - costs about the same as a cellular GPS tracker per month. If you can do all three (
cellular + satellite + LoJack), there won't be many places your vehicle won't be able to be found... Doing this is "a bit much", but it depends on the value of your truck to you and your lifestyle. Do something like this and you're more likely to recover the truck before significant damage or "chopping" is done to it (like pulling off axles, cutting the frame to get at the engine/tranny/transfer-case.
If you get the TrackMate GPS unit, they are putting in SMS remote control capabilities to their software - even on an older truck like a CUCV you would be able to basically roll-your-own "OnStar" type thing. You could lock/unlock doors remotely, or with a
few gadgets - command the truck to come to a safe stop remotely. This
would absolutely have to be coordinated with LEO - you'd be taking control of the vehicle, so you would end up being responsible for its occupants, no matter how much you might not like them at the moment you'd have to keep cool and in control.
Off topic a bit (tangent in support of the theory of this thread), I kind of wish that DoD did this to all of their trucks right out of the factory. Something like an Iridium 9602 or 9603, are much smaller than a credit card - when idle they draw less than an Allison Transmission TCU at power off, something a Solargizer should be able to compensate for. If they had it in deep sleep it would draw essentially nothing - program it to wake up every 6 hours during a day when the network is available, and listen for a "ring" burst for an hour doesn't take much power. what they could do with that is: If the truck is stolen, they send out a message to turn on the tracker (with authentication OBVIOUSLY). The Iridium network sends a ring alert telling the SBD modem there is a new message for it at the gateway, the modem goes fully active and retrieves the message which tells the tracker/transponder to go active, then it replies with its GPS position at given intervals. Then you send in the Seals, Marines, or a JDAM...
Iridium 9602 SBD Modem:
Iridium 9603 SBD Modem: