Same thing happened to me early January. I got to the house around 7:00 on a Sunday evening after deer hunting. I grabbed my rifle, sidearm and other valuables and off in the house I went. Got up the next morning to head out and while walking past my truck to the work car I noticed the center console was up. I opened up the door and it had been ram sacked. They went thru everything but took nothing. Like you I left it unlocked which I never do so I was lucky. The Police said it has been happening often in our area and the thugs where looking for guns or cash only seeing how they where leaving behind other smaller valuables. Hope you get your pistol back.