Finally got something in black and white from the insurers..like getting blood out of a stone

..its not covered on the drive after 10 pm...I can live with that..I've seen this clause in other policies where there is an additional 'within a mile/ 5 miles of the address', and others where its not covered at any time..
PCG – Garaging
This insurance excludes Section 2 - Loss of or Damage to Your Vehicle unless your vehicle is kept in a securely locked garage
(as defined in the Policy Document) between the hours of 10:00 PM and 6:00 AM. This restriction does not apply when you are
in the course of a journey or are staying overnight in attendance with the vehicle away from your home address and/or declared
garaging address.