a couple spent two years battling the council over a £ 2.20 parking ticket they say blew off their dashboard - and ended up being ordered to pay £ 400 .
in the process of getting out of the car the ticket they had bought fell on the floor just underneath the driver 's seat - invisible to the warden who issued them with a penalty .
escalating row escalating from an initial £ 25 fine to bailiffs knocking on their door and demanding £ 400 .