The one question is will Warwickshire be thinking about trying to qualify still? It would require Surrey to lose which seems unlikely, but the calculation they need to look at is if Surrey fail to win by one run then Warwickshire need to improve their run rate a bit - I think they'd need to knock the runs off in 40.3 overs. If they take the full 50 overs then they are relying on Surrey failing to reach 180.
(Maths could be entirely wrong on those NRRs as I've done it very quickly)