Also in this morning's Times is the news that "DIY clamping" may be introduced. As the picture shows, a clamp will have a combination lock on it. When you get clamped you ring a company, pay a fine and a £150 deposit, unlock the car and take the clamp back within a week for your £150.
One minor problem, thatv looks to me like a six figure combination lock. True it will take you time, but what is to stop anyone simply cycling through from 000001 to 999999 until it unlocks. You can almost guarantee you won't have to go that far either because they'll probably be set to the clamping manager's date of birth which reduced the range down to somewhere between 010130 and 311299.
Or am I just too cynical? I mean, sure, it will take you bloody ages to cycle through the combinations, but if you don't have £200 odd quid available (deposit plus approx £50 fine) you might fancy sitting by the roadside and trying it, right?