Do you have your tools laid out in ready to grab tool bags or toolboxes? If so take them with you inside, they know your truck as an easy target and I think they"ll be back. With my layout it will take some time to gather it all, hopefully too much.
or a real good theft deterrent auto alarm , the one with a beeper remote that can sit on your nightstand near your gun so when it goes off it shows broken glass or which door was opened and you can grab gun and run out and take "care of the situation" . Its only 300 dollars installed and works great ..i have one and sleep much better and take less out of my work truck since its been on there.
At a FLEA MARKET 1 Sunday afternoon , 1 guy had PILES of tools , tool boxes , pouchs for sale. Story was he had retired from the TRADES , yet had no IDEA what half the tools were. This other guy showed up with the POLICE and Identified a few tool boxes and a lot of tools .