I would say you got the shaft if it was a heart shot and it was not that many hours before you found and gutted it in a temperature like you mentioned. I doubt you'll receive any compensation or get any real good comments, so as was mentioned I would take it as a learning experience and either find another place or process them yourself like many of us do because it's not that hard, doesn't take that much time or equipment, and if anyone screws up you know who to blame.