I was driving an Outside broadcast vehicle just before Xmas.... let's just say it's about the size of a Chrysler Grand voyager... (in fact it IS one... but somewhat modified)
had a stand up row with a parking operative about it overhanging the marked space.......... at both ends....
he wanted to give us a ticket, despite us having paid , fair and square of the space..
At which point, we waved the paid ticket in front of him, and pointed out that in implied a contract to provide parking for said vehicle... by his employers... and that nowhere was there any sign or indicated T&C's that limited the length, or indeed width , of the vehicle..
My final line was along the lines of..
you can persist of you like, but I'll be invoicing you personally for my time in sorting this out, and our lawyers have some VERY fancy offices, which rather implies when you lose in court, you AND your employers may be landed with a very significant costs claim....
carry on writing the ticket if you like son..... it's your job isn't it??.....
he went away........
came back 45 minutes later with an "inspector" , who took one look at us, what we were doing , and our permits to do so.... and promptly told him not to be so bloody stupid.....
and apologised to us.... , how I kept a straight face, I'll never know...

I've never enjoyed Carols from St James's Picadilly quite so much !