I don't think the dealer is probably at fault for this, but I think we may be jumping to conclusions here about the OP and taking a negative view of his side of this problem.

Remember, the OP has already spent several thousand dollars with these people to have a car that doesn't move, and has a current inspection sticker, that he immediately prior drove 900 miles there to have a light fixed. Id be pissed too, but its probably not their fault.

Dealers as a whole are notorious scam artists with poor service on older cars, with few exceptions, so in most situations I would completely be on the side of the OP as the person who has been wronged, but if they didn't do any transmission service, its probably just an unfortunate coincidence. Trans failures could be sudden and permanent, with no warning.

The real problem here is that its still there. There is a possibility that it might be something simple, but I doubt it. You need to check the linkage, vaccum lines, ect. The dealer will be charging you through the nose to do basic inspections, and chances are they know less about these cars than the average owner, so you are paying them to learn.

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