They did. Going off the comments on the FB post, they asked the Council beforehand for an exemption and were told no. And on this basis, knowing they would have had to pay fifty notes, they still decided to rattle into town in a (presumably) ancient, unexempt horse box, rather than a) not bothering, or b) deciding to go somewhere else to fundraise instead (I dont believe for a second they had the £50 sprung on them the day before).
Like I said, they could have gone to Crystal Peaks and got a decent wedge in donations no doubt.