I never mentioned the fireworks again. Well I did go and they were great, very happy with it all. A great show with a nice atmosphere in the crowd, I can really recommend it.
I got the train up there to save some time and then walked home through the crowds. The only downside to the evening were the handful of people who thought that trying to drive a car through the crowds would be a good idea. The roads were meant to be closed, it looked like people who were inside the closed area were trying to drive out. The bemused security staff were trying to guide them to somewhere to stop.