His Council is no overall coutrol, with the LibDems being the biggest party, and a coalition of everyone else except the Tories. So he may be a Councillor, but he will have no power to make any policy and particularly any parking policy. So the biter bit part is wrong.
I do have some sympathy with his case, if the note was left before he went for a battery. It would be quite easy for him to have scrawlled the note when he returned to find a ticket, and then take a photo.
I do not have any sympathy for people who hang themselves be wroting stupid things on Twitter and Facebook. They deserve everything they get. It might have been better to appeal the ticket, with the note and photo as evidence, before making a fuss.