I live in Lakeway which is a suburb, more or less, of Austin. There’s no line to cross between the two, they just blend together.
I have Second Amendment Sisters magnetic signs on both front car doors. (I get both a lot of thumbs up signals and frowns for these signs>)
Twice, I’ve been pulled over by Austin police who only wanted to ask about our organization—both times, I was shocked! They could not have been nicer, nor more supportive.
I hope you are correct, and they are being genuinely curious and friendly, for your sake.