Has the OP been served a NIP as they are now outside the 14 day window? do they require one to be convicted of any driving offence?
I suppose they can still be served a S172 where they have to say who was driving or face 6 points but if they are in the clear regarding driving offences they can name themselves.
The only question is what was inside the car that the OP was afraid of being found? Is it worth 6 points to avoid further incriminating themselves regarding that.