Free Traffic Legal Advice

Hi All, hoping you can help.

I received a PCN (image below) for parking as per the topic.
Parking at this car park starts at 08:00, I 'purchased' a free 30 minute ticket at 00:36 (as the ticket does not start until 08:00, so expiry on ticket is 08:30).
The PCN states "Observed From 08:36 to 08:40" and the issuing time of the ticket was "Time: 08:40"


Based on my query and the answers in this thread in the Fire Pit (https://www.ftla.uk/the-flame-pit/what-is-the-legalenforceable-timing-for-the-10-minute-grace-period-10th-minute-o/) I challenged the PCN on the basis that it was issued 1 minute too early but it was rejected (second & third images below).


Just wondered if this is worth pursuing with a formal challenge etc.?


Thank you all!


PCN:




Challenge Rejection:

Thanks @stamfordman. (It was me that started the thread you linked, it seemed split as to which was right - 08:40 or 08:41, so I put the challenge in)

Yes I am the keeper and the logbook is up to date.