Good points. However, the building is accessible and meets all U.S. standards for disability access. The volunteers did what they could to meet this persons needs, but it wasn't going to be good enough. If this person brought a wheelchair or their own chair, they would have been accomodated. The rest of the chairs are up to code. What law states that only chairs that satisfy comfort be provided. Churchs with hard pews would be out of business.   

I don't think that handicaps as an excuse for boorish behavior, especially when people are trying to meet their needs.