yes they do. There are very often traffic wardens about on the day of matches, and i was in b and q one match day, and there was a warden trying to put one on my car! Luckily i saw him and he was able to see i wasn't at the match. I expect you'll find there is notices to this effect - there certainly is in the band q/bhs car park.
In fact, thinking about it, isn't there normally people on the approach road standing by a sign that say "no match parking"?
I am going to costco tomorrow so will look and see if there are signs and get back to you