Well they put the lines on, filled it with fluid, and took it for a long test drive and everything worked as it should!
I will get it home and do the filter and fluid, and then destroy it...
I bet that broke the dealership's heart!
I suspected that would be the outcome. A long run on low fluid would probably be a different story because the trans slowly looses pressure and heat builds, but a fast dump like a cooler line breaking drops the fluid pressure pretty much instantly.
Good to hear you get to kill the trans on your own terms!