The sole evidence is their video, and we must see these in conjunction with knowing your approach to the restriction signs to assess your chances. You've submitted reps once and got a reasonably favourable result. Can you please submit your reps. Their policy is next to useless because it takes no account of mail delays. Problem with these cases is you are asking for mitigation for the 2nd and subsequent PCNs.
It's late in the day, so I'm going to bed ! I expect somebody will be on tomorrow to help. If you're happy with the result you have, then pay, because if you take them to London Tribunals the full PCN penalties will be in play, and unless we see the videos we can't assess your chances there.