I'd like to think this recent story from Metro was true but one suspects it may have been invented by a bright spark in the IT department generating google juice from mugs like myself:
Disabled driver slapped with £40 parking ticket
By AGENCY - Thursday, November 12, 2009
Disabled driver Harold Cadwallader was given a £40 parking ticket after the sun bleached the print off his blue badge.
Wardens said they could not be sure it was valid.
'I rang the council but they advised me to put my badge where the sun doesn't shine,' said Harold, 87, of Woodbridge, Suffolk.