So I completely forgot to contact Apple, though I doubt it would have done much good.
Anyway, I decided to just go with OpenAudible, which, stranegly enough, is shareware, not open source. (I think it started off as open source, and then they never changed the name.) It doesn't let you convert to mp3 without a license, but the license was only $12.00 so not too bad. Worked great at what I needed it for.