Not to be a pain in the ass, because I am stupid and probably mis-understood something, but shouldn't this auction have ended at 9:01:00?

I see his point here.

This bid should be invalid as it came in 49 seconds after the auction ended??

Has OP contacted you yet r_a? Judging by his own specific rule set I would agree that the "winning bid" is invalid.

No, and I can't message OP due to this account being a newbie. Crossing my fingers!

I'm sure K-Paxian or the selected escrow would be eyeing these threads so hopefully the proper bid is honored here.