Man, having someone scope out my equipment at the range and follow me has never crossed my mind. I’ll be more vigilant from now on when I go to public ranges. Thanks for the heads up.
The number of firearms that was being put in the back of the vehicle was surely something that caught the thug's attention. There's no question he knew the guns were there for the taking.
My wife often puts her purse in the trunk of her car before going into stores and such. I've always reminded her to never do it after she parks but somewhere well ahead of time. And I have purposely never put any hunting or gun related stickers on my truck so that theives aren't attracted to them. IMO, nothing says "probably guns inside" than a nice pickup covered in gun or hunting-related stickers with out-of-town dealer markings that's parked at some Hill Country stop during the middle of deer season.
Since my OP, another Houston area TV station aired a separate report on a number of cars in the area that had guns stolen out of them. And amazingly, many of the guns were stolen out of unlocked vehicles.