Hang around the ground towards the end of the game. When they open the exit doors, say you left your bag inside to a steward and go watch the last 10 mins or so.
You normally have to stick to your specific train time. If they are both the same price and take the same time then it may not particularly matter though. If the trains are packed then it's unlikely the tickets will get checked.
Loved this goal at Derby. The cut inside and the finish.. and of course the fatty whose belly pops out too.
We had a quality support there that day. Bale's freekick was class.