A certain author, whose work I love, due the unique, easily identifiable character's voice, wrote "When I got out a the truck". That's a deep Souther USA expression, which I've grown up and lived in. But the expression isn't "out a", it's "outta", as it's spoken as a single utterance, which the South is renowned for.
The particular author doesn't allow feedback, but it's always helpful to point out these types of things, as you never know when you'll write either a Southerner story or a Southerner character. So it's hardy keeping it in your pocket till you'll need it.
That said, this is the first time he's gotten a 'Southernism' wrong, as he's got a decent feel for the localism (how languages tend to vary from one area to another).
And for the author, this isn't a criticism, merely an observation to help others, so you can do with it what you will. It didn't make me outta the tale, other than the time it took posting it here. (It was in Chapter 27, by the way.)
By the way, I don't speak southern anymore, yet I'm more than familiar with it.