I say this with no knowledge whatsoever, but so long as your intention is to walk there early, aiming to arrive by say 4.30 / 5pm, I'd be astonished if that were at all problematic.Genuinely considered that myself. I'm on my own and was going to walk all round the city anyway and wondered whether it's possible to just keep going and rock up to the stadium safely.
On the other hand i might just pay sean to look after me.