I found Wembley Park after the match was surprisingly simple. More or less straight onto a Metropolitan line train and changed at King's Cross to get down to London Bridge.
While wonderwall was annoying (having watched the recording you can hear us over it which was great) the pre-match music annoyed me more, they played an Oasis track which the City fans could just be heard singing along to so I thought they would then play a FBS song, I even thought for a second...