Disabled parking spaces shouldn't be abused regardless of where the are. The majority, however, are provided as a courtesy by whichever company has them. This means no enforcement, no clamping, no police, just good old common good manners which are sadly lacking in so many!
BTW To avoid parking dings I always look for the most expensive car in the car park and park right next to it. You know he/she is going to be careful!