Yes, my TA and I both spoke w/ several people, even supervisors, but no dice. We even asked if my dad could just use my DDs ticket (she won't be there), but was told no. They said it had something to do with airport security and the bus manifest had to match the passengers on the bus, but I think it just boils down to computer programming not being flexible. I'm out $65 for a one-way towncar for them, but just decided it was worth it to help them have a seamless vacation. I just wanted to warn people that they really mean it when they say that you must make advance ressies and everything has to be spot on, there is no flexibility like there used to be.
BTW, the CM said, "late next year", which I took to mean after the HCOE is over, they will start charging for DME.