It's an excellent idea, and highly recommended. I've shared this story before, but will again....
My brother and I were in Long Beach, CA showing our vintage cars at a car show, at a nice hotel on the waterfront. He'd trailered his, using is "as-new" '89 Blazer. I'd driven mine. His K5 was in the hotel parking lot, about 100yds from where we were showing our cars. We were using the K5 as storage during the show, so we were going back and forth to it as needed. One minute it was there, the next minute, there was just an empty parking space. We could not get through any phone system to either the CHP or LBPD, because...well, it's LA. The Blazer was "found" in a neighborhood in Compton 3 days later, as just a hollow shell sitting on different wheels, missing the entire front end and engine, and a trail of transmission fluid leading up the street into the driveway of the local thiefs. All of my family's belongings and my brother and his wife's belongings were inside the residence. When I saw the photos of what remained of the truck, once it was taken to the wrecking yard, I nearly cried. There was nothing left. Literally just the metal shell of the cab, the frame, and a different set of wheels.
So do your diligence to keep your rig from being driven away, and consider something visible in addition, so that they won't even consider breaking in (and no, not a club, which they cut off in under a minute). The big GM steering column locks are a good option. But I'd still suggest a hidden something.
https://www.ebay.com/itm/New-GM-Cad...394146?hash=item342a80f662:g:nt8AAOSwgslbCFG5
The point being of course, is to keep them from wrecking your truck, only to discover that they can't get it started. IMO, you want them looking through the window and thinking, "Screw it, I'll go look for something that's gonna take 2 seconds to steal."