There’s just something about the trio that makes the jokes roll out. And yes, Jacob is referring to Exit. He’s learned not to be cheeky with all the Genocide Men…
Girii: He's not driving, he's flying.
Roger: For god's sake, why are we letting Jacob fly!? The last time we let Jacob drive, he plowed through a farmer's market!
Girii: There are no markets up in the air, Roger.
Roger: I'm worried about him hitting one on the ground!
Jacob: Relax, I got this. We had a smartass pilot in the project...always kidding us about how we needed him. So I took some flight training. He was always polite to me after that.