I've received a PCN from the council for "31J Entering and stopping in a box junction when prohibited". £130 or £65 if I pay in 14 days. I've attached a screenshot of the incriminating section of the video of the offence - just wondering if there is any point challenging it? My wheels are at most on the line at the edge of the box and I'm not impeding anyone. I appreciate the small print of the law probably says that on the line means in the box but I'm about to enter the unpaid period of my maternity leave so it would be helpful not to have to pay it and it really does feel like a victimless "crime"!