Royal Fleet I suppose the problem is that they sell the number of permits to match the number of spaces, and they are never closely inspected. So someone could lose one, replace it, and the lost one be used by someone else. Moreover this opens up potential for abuse with someone getting two for the price of one.
So the answer surely is to inspect them closely.
At the same time proper action about where late comers park in the car parks could be taken - IMHO a lot of the problems getting out of the car parks are down to people arriving late and parking exactly where they like, frequently on the ends of rows or even blocking exits.
I'd personally like to see the club go round at half time, take registration and permit numbers, and take action against people who 's selfishness messes it up for everyone else.
A re-painting on the lines in the car parks wouldn't hurt, too ....