Have a look at this article on social inclusion at festivals, particularly the point about the segregation of "disabled" facilities from facilities for everyone else. True inclusion facilitates everyone and segregates no-one.
In fact, the phrase "disabled parking" is a misnomer - parking cannot be disabled, can it? "Wheelchair parking" is another one - I'm sure someone somewhere has come up with a great cartoon about that! In fact, just google 'wheelchair parking cartoon' and click on images and you'll find a few.
Kudos to Inis Oirr's "Drop Everything" festival by the way.
