A 700 train? that might be interesting! It's ok l know what you mean really. It's good that the 700 runs so late, my local Stagecoach route comes to a halt much earlier, with the last bus departing Churchill Square by 7pm.
Well wouldn't it make far more sense to hold them INSIDE the ground? Let the majority of home fans disperse, then allow them out and escort them to the station.
It seems reasonably straightforward to me.