Did you manage to get in? I managed to lock my only key in the boot while my focus was dead locked. I was impressed by how secure the car was. I got the RAC out and his method was remove reverse sensor and backfeed 12v which powers up the electric windows. Wedge/Airbag in drivers door, stick to wind window down. Unfortunately I have a saloon so the seat release for back seats is in the boot not accessible from back of car. He then fed 12v to the boot release wire which was under the back n/s seat.

Popping the middle brake light out seems easiest way to go. Or find a friend in the RAC with cover on any car to say they were driving and have locked keys in there (worked for me).