LAME! I got my snake from BHB and she is mite free.... Probably a good thing to warn Brian about though, just so he knows that you got one with mites. I don't think any good breeder would knowingly send mites, I am sure it was just an over site. That doesn't make it BETTER, still flipping obnoxious, but I don't think it was just complete negligence, more like an unfortunate thing that happens and annoys the crap out of everyone involved.
Best of luck! Vent away, all parasitic bugs are indeed a nightmare. Just thinking about them makes me feel like things are crawling on me. *shudder*