Hi there, I'm hoping for some advice on fighting a recent PCN received yesterday 27/10 on my vehicle windscreen.
Location: Forest Road E11, resident's permit area.
Street view link.
PCN reason: Alleged parking "outside the marked bay."
"621 Parked with one or more wheels on or over a footpath or any part of a road other than a carriageway (one wheel on footway)" PCN images:


The infraction: One wheel appears to have fractionally overshot the white hatched markings on the curb I'd estimate by only an inch or two. The markings are also hatched, making the boundary unclear in relation to the wheel. Pictures here:


Context:
- It's an extremely tight street with garages on one side and no footway there, and the resident bays (where my car was parked) are on the curb/footway side.
- The two houses directly opposite this bay (with their back gardens backing onto Forest Road) are undergoing a major renovation. They are using their back gardens as a staging and parking area, meaning there are constant large articulated lorries, deliveries of materials and builders' vans accessing the property. My car was parked to give maximum operational space for these large commercial vehicles to pass and maneuvre safely without risk of hitting my car or causing a blockage to other drivers or pedestrians.
Image to show proximity to building site:

- My car's parking position, despite the fractional potential overreach, caused zero obstruction to traffic, pedestrians, or adjacent bays.
Is there any potential appeal here perhaps on the basis of de minimis, or with the mitigating circumstance that the car had to be positioned in such a way to aid general traffic flow around large builders' vehicles? Any advice on the strongest legal angles appreciated.
Thanks!