OP, there appears to be a procedural error which could win.
Your argument regarding the location of the vehicle won't, so I'd drop it, it's a distraction. The plan you posted with 'car parked here' is wrong. Look at your plan, you can see the internal dividing lines which divide the parking place into individual parking spaces. Now look at photos of the car in situ. There aren't any such markings either front or back and that's because the car is parked well to the rear of where you've indicated, in a permit area which does not have separate parking space markings.