Whilst I have seen rows of cars ticketed I have only seen the odd car clamped - but then I do not live in Birmingham! Some years ago I saw dozens of cars ticketed as they were illegal parked, and in some cases dangerously so. Their excuse was that they were attending a charity event but why that precluded them walking a few hundred yards never became clear. despite complaining to the local free sheets the penalties were rightfully enforced. The arrogance was unbelievable - supporting a charity does not put you above the law!