Depending on what kind of mount you would want, you might want to skip the field dressing and let your taxidermist skin it first. If you are just going to rug it, go ahead and gut it out, but try not to do a hack job on the incision.
I've never heard of check in stations "interrogating" lucky hunters. That's a new one to me. If you want to ask someone "in the know", send a PM to R.S.B. He does that sort of thing from time to time.