If you or your wife is the registered keeper, ignore this Notice to Driver and wait until a Notice to Keeper is sent to you. Come back here when it does. There is a good chance that it will fail the requirements to transfer liability from the driver (whom they do not know, and who you will not identify) to the registered keeper.
For example, having 1 minute as a period of parking is going to be a problem for them.
Just make sure you don’t identify the driver to them.