A provision in the act itself very clearly states that working in one's language does not take precedence over the citizen's right to receive a service. I recently spoke to people from a union. Someone in the room said he didn't have a right to work in his language, that it was the citizen who determined the matter. I answered him that that was correct, that it was even set out in the act.
On June 8th, 2010. See this statement in context.