Newer cars and trucks have a distributorless ignition system (DIS). They have no coil wire to swap. A clever thief would take a quick look at the fuse box and replace a missing one, to see if it starts.
A way to disable a vehicle that is going to be sitting for a while (a few days or more) would be to find the Fuel Pump relay. Go to your local auto parts store, and buy a replacement.
Now use a test light and find the prong on the relay that powers the fuel pump.
Using a pair of wire cutters, CUT THAT PRONG OFF.
When leaving the vehicle for an extended period, replace the fuel pump relay with the one you just modified. A thief will try to start, look at the fuses and relays, see nothing missing, and hopefully move on to another vehicle.
When it is time to use the vehicle, replace the dummy relay, and drive away.
Can you tell I have had some time to think on this?
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.