Hi all, thanks for your help so far.
I am not too familiar with the area but I believe we were approaching from Oakwood, I turned right onto Oakwood Crescent.
I have uploaded the PCN, video and pictures from the PCN into this folder:
https://drive.google.com/drive/folders/11N0Bx3pk_mPbarRvPPxcc0c_6DZ1l_PR?usp=sharingI have also taken two photographs showing:
1) the only signs before the turn are a 'Traffic Enforcement Cameras' sign on the right, and a School sign and Humped Crossing sign on the left. No sign warning of a restricted entry road coming up.
2) the tree right in the way of the view of the road we turned into obscuring the signs.
The video clearly shows us stopping immediately after entering the road, and it is clear from the car's road position that I opened the door to get out to look at the sign rather than to park the car, which is what we believe they are trying to show by cutting the video where they did.
The picture of the numberplate is also from the front of the car so it is clear that we have turned around to not use the road.
The fact that the house on the corner and the junction has been blurred on GSV and the fact that GSV is fairly up to date 50 yards either side of the junction suggests the council may have requested GSV to restrict the view as well, but I may just be overly cynical at this point.
Thanks again for the help!