No good deed goes unpunished

[QwertyWitch]

I got my dc to volunteer at a local event. When it came to pick them up, I drove into a car park as the event was close to the car park, but they decided to stay a little while longer to help with the clearing up.
I was waiting 10 mins in my car and I just today received a £60 fine as they've newly installed cameras that I wasn't aware of.
So annoying and that phrase came to mind.

No signs up?

@MatthewsMumFromTikTok
They said in the letter that signs were up but it's one of those car parks that I've used hundreds of times and just didn't notice that they've only just installed the cameras.
Usually there are traffic wardens.