I'm sure that this practice of "shill bidding" goes on at a lot of auctions, but that doesn't excuse the practice. If it did actually happen, and can be proven, this is a slap in the face of everybody who is involved in the hobby.
I'll bet that it will be very difficult to prove any wrongdoing on BJ's part, but that their reputation will suffer, regardless.
It's too bad, because the cars don't know any different, and it should be about the cars.
Dan