Orwellian language watch

One of the major radio station chains in the United States has gotten out from under a raft of indecency complaints filed with the Federal Communications Commission over the hijinks of shock jock Mancow Muller.  How?  With what the company calls a "voluntary contribution of $300,000 to the United States Treasury."   The linked article does not clearly attribute this gem of Orwellian language, whether it's the company or the FCC, but does it really matter?

I know, I know — the government conducts shakedowns of businesses in this fashion all the time.  But the perversion of the word voluntary is a new one on me.