Not sure of the timing of whose where and when, but it wouldn't take much for arrival team guy to send a pic to somebody else for posting.
Either way, its my guess that Q and Q+ would have to coordinate those [0 DELTA]'s while in proximity (mr big word bagster).
I could be totally wrong about that, of course. I think Q may be more tech savvy than me. Hahaha.
Then arrival team guy would have to be part of team Q because he would know who he sent it to, and therefore who Q is.