Sorry to hear of your trouble Nick ~ we have all taken the chance and got away with it.
All you can do is hope your solicitor puts forward a good mitigation plea to keep the fine down. The ban is going to happen.The biggest annoyance will be the increased insurance charges you will face for several years to come.
On the plus side perhaps Mrs Nick will now realise how much running around you have been doing whilst she, to judge from your comments both in this post and others, has been Mrs Unreliable to say the least.
Her rage is probably not unconnected with the inconvenience of having to do it all herself for the next year.(Swimming, Tennis, Music lessons etc etc + Shopping). No doubt other parents will rally round and provide The Boy with lifts to and from and of course we can always come round to you during the summer months.