I find your experience very different from mine. I live in Texas. I would expect a number of open carry handguns in any public place, and if someone started shouting half of those open carrying would put a hand in their gun and look tense.
OTOH, stealing a phone, smoking meth, or disgusting excretory things outside of a bathroom would be unthinkable. I would not worry if I left a cell phone on the seat if my pickup in Waxahachie or Hurst with the window down all day. I did leave my wife's cell phone in the seat of my pickup with the windows down when I ate in a restaurant in Waxahachie a day or two ago. She made fun of me for it, and I replied "It's Waxahachie."
BTW, the last car dealership I passed on the way home (before I stopped for dinner and answered this post) is called "Lifted Trucks." Seriously. You can look them up on Google Maps in Hurst, TX. LOL. This is Texas.