What year/model truck did you have? The reason I ask is because if it's not too old, it might have an onboard/factory "Emergency Call System." You know, an SOS system like OnStar…
My 2019 Toyota and my 2020 Honda both have an OEM emergency call system, a button I can push if I run out of gas, have an accident, etc… both also have built-in stolen vehicle locator built in that will give the police the GPS coordinates. It's not a selling point by the dealer, they just tell you about the accident protection features (automatically calls if there is an airbag deployment, etc… so you might not know about it capabilities. I do know about mine because I'm **** and I even read the instructions on how to assemble Ikea Furniture…
I do not know if there are other built in systems that might assist the police in locating the vehicle, but I suggest you Google you vehicle's model and year and "SOS" and "Emergency Call System". You can also call a local truck dealer that sells your truck and ask them.
If the worst case comes about where you must deal with an insurance agent, say this to yourself, "Do not go gentle into that good night." It from an old Dylan Thomas poem and means that death is inevitable—everyone dies, sooner or later. But that doesn't mean that people should simply give up and give in to death.
Although we are not talking about death, but your truck and other possessions, fight for the value of everything that was taken, when the agent says s/he cannot offer more, thank them, but tell them you cannot accept their "offer" and I say offer and walk out, because that is exactly what it is, an offer. And do not worry about walking out, that adjuster has to settle the case, s/he cannot ignore you.
The insurance adjuster has great latitude but s/he also can't waste (or if you prefer, spend…) much time on your case. S/He is expected to clear the settlement quickly.
Back in 1994, the shed out building in my back yard was torched (arson) and my '84 Harley parked inside was totaled. The State Farm Adjuster showed me the "Red Book" that they use to establish the value on a vehicle was X,XXX dollars, while the Blue Book showed the value to be XX,XXX dollars. I refused to accept the value and we went around and around. He finally raised his offer to an acceptable offer paying on the motorcycle's insurance policy. As a side note to this, they also had to pay for all the items that I had upgraded with custom equipment. The old exhaust system, seat, handle bars, foot pegs, hand control and grips, etc… were also in the shed and destroyed and they had to pay for their replacement under the home policy. In the end, I did not make a profit, but I received enough to rebuild my bike from the ground up…
Good Luck and I hope they catch the #%@@&*#!