I don't think there's info enough in that brief monologue to imply that Jason hasn't fixed his differences with Bruce, not to the point of them being in full confrontation. I mean, he's bassically wearing Rebirth's costume, batlogo included. I think he's just doing his usuall trade. Maybe not even in Gotham (he probably is in there though). There's so little info in those pages. It's mostly an intro to the character.
I think he got catch by the cops by pure chance, too. He could have beat them up, but chose not to (because they're cops and not criminals I guess). And he was surrounded by them in that station. Maybe I'm wrong but I don't think it's too impossible. And, I guess, he didn't runaway because he was still recovering from the beating... and then Walller is supposed to walk in.
We will see.
I like Jason's voice so far. I like it a lot. The art is nice too, but I was already expecting it to be.