John remains exactly where he is, displaying the appropriate amount of interest and excitement someone in his position should at news such as this, and he watches the exchange between the two men, already thinking about what he needs to do. Call Finch, of course, get him whatever information he can about the location of the report and find out if there's anything worth knowing. Maybe get in touch with Dutch as well, although he doubts there's time. Taking a squad car of his own would be a bad idea, but he's sure he can find a truck to hotwire within a few blocks of the precinct and Finch will be able to keep him in the loop regarding where Reid and Rodriguez end up heading.

It's not that he doesn't trust them to do their jobs. He'd meant exactly what he had just said to Reid, this is his purpose, his calling, and he's good at it. But John's purpose is taking over where the police can't quite go. It's taking things further than law enforcement is allowed, and if this tip is real, if this leads to something, he wants to be there, too. Just in case there's something Reid can't go that he can. Just in case there's a place where his hands are tied.

John's hands are never tied.

"Go," he says with a smile. He has to time this carefully so he's not seen by anyone. "Get your man. Make sure you remember everything so you can tell me the details once this is all over." It's light hearted cop banter, something John has found he actually enjoys, so it's genuine, too. This is Reid's collar, this is Reid's case, John just wants to lend a slightly illegal hand if he can. If it's necessary.