Drive by concerts

Anyone any idea why the Civic Centre car park in Wolverhampton is closed on Sunday evenings when there is a concert on at the Wulfrun Hall?

I was not the only one at a recent Judy Collins concert trying to find somewhere to park and the problem would have been even worse had the hall been full. If Wolverhampton wants us to turn up at its theatres and concert halls it could at least meet us half way and provide parking.