Free Traffic Legal Advice

Hi there - thank you in advance for your help!

I live near a park that had a festival this weekend (lambeth London). There has been a temporary change in parking restrictions for parking on my road - changing it from permit holders only during week and free at weekends and bank holidays to only permit holders only. I didn't realise my permit didn't renew automatically, so I was given PCN for Saturday, Sunday and Monday (bank holiday), which normally would not require permits to park there.

I got back late on the Monday, hot and tired I paid all 3 PCNs (£80 each. The full year's residential permit is about £250...)

They have put up signs, but they are very small, and are not that obvious. They are also not yellow - see image here: https://imgpile.com/p/EdSIg7b

On a different road in my area, they have put up these yellow, much more obvious signs: https://imgpile.com/p/EdSIg7b

My question is:
- Am I able to argue that as the signage is not yellow, that the temporary restrictions don't stand?

- As I got 3 parking tickets over the weekend - can I argue "continuous contravention". I did not move my car as I was away during these 3 PCNs being given. Does this mean I only pay one PCN?

Thank you for your advice!
Fi

Oh no! I should have thought about it before doing it.

Do you know if I hadn't paid, would I have a case to challenge it?

Thanks,
Fi