"You know there was a time this was highly unnecessary." It was still considered poaching and he got lit for it before, but Robin was never going to make this easy. Authority and he just didn't mix well. But, she was cute so he was willing to produce the goods.
He pulled out his permit from the back pocket where it was folded up in his wallet. It was worn, a little rubbed down the crease, but it was his. The name was fake (as was for any immortal stomping around this world), but it was official. "Does that satisfy the lady?" he asked as he handed it to her for inspection.