Contrary to what CNN and Fox narrative, most people in this country are pretty good people, assuming you use a little common sense....a bunch of gang tags, and sirens might be your fist indication you're in the wrong place.
Flyover country is generally populated by people like you who are simply trying to make it through life, not looking for the fastest way to steal or worse.
I've not made a habit of Walmart lots for two reason:
1) I don't like Walmart in general (try buying something made in America there) -and I'd be a hypocrite if I stayed there
2) there's generally two of us and that means open windows, or needing 110 for Air Conditioning or heating.
Common sense is king here. Look for the slightest warning....if you see it, move along. Stick to more rural areas and hide the expensive stuff....leave the 3 finger ring at home.
Just as a side note, I think it's funny a previous commenter talked about bikers....unless your next to 1%ers, more often than not, most of these guys are professionals who are role playing, most I know are family guys/gals anyway

---the only place in general bikers are trouble is in entertainment and snews. Treat them with a little respect, and you'll be fine.
Don't use SOA as your education....although even there, the only people who got roughed up were bad guys playing in the same pool of filth....corrupt cops and rivals.