I will try calling blue ox tmrw. Cadillac has said you can't flat tow it, but I am pretty sure it is to avoid burning up the transmission and transfer case. Hoping that with the engine idling and in neutral, that they will both stay sufficiently lubed.
Should be similar to just putting the vehicle in neutral when coasting down a big hill?
Thanks again for everyone's feedback. I definitely don't ever plan on towing cross country or often this way, but think this work around makes the most sense a couple of these baseball tournaments we will be going to this year.