Oddly enough "sorry" is also quite common in the upper Midwest US. If I bump into someone else by accident, and it's my fault, they will reflexively say "sorry."
From Green Bay to Dickinson, the complete utterance is “Op Sorry.” If one is not in a hurry it is sometimes “Oops, Sorry.”
In Los Angeles, its the same in person, in a car it's the finger. (Unfortunately)
Yeah I'm from Kansas and none of these meanings were new to me.
Yeah, this would read just as well for the upper midwest. Although "Ope!" is also interchangeable with sorry in a lot of situations.