Ok not for nothing, but why does he need to show you proof of it being there? Call me crazy, but if this B/O friend of yours told you that 9492 was at 126th Street, then where is HIS proof? Perhaps you never asked him because you straight took his word for it. However, when ciboii tells you something, automatically he has to have proof. To me, that is not right, and I think you are bashing on him just because. Truth be told, I would believe ciboii on WHATEVER he tells me about Ulmer Park because he literally goes by there everyday. Hell, when i was working there he told me what was there before I even got there!!!
How about just giving him the benefit of the doubt. If you don't believe him, then simply do not reply to him, it's that simple. Also, has it ever occurred to you that maybe 9492 was there only as a transporter bus? As in, when LGA received a bunch of RTSs from UP recently, 5083 was there as well, and everybody jumped up and down saying there's a ZF at LGA, when it was only there to transport drivers BACK to UP. So if 126 received anything from UP then 9492 could have been used for transportation back to Brooklyn. Keep that in the back of your mind.
Not bashing on you or anything, just stating some facts. Maybe you can go spot these things for yourself, if you don't believe anybody else, just saying.