I think some of the "ethical" stuff here is really over the top. Not all states have the same game laws and if you got a ticket it would be up to the courts to decide who was in the right. A recent article in the Pennsylvania Game News magazine is a good example. A bear was reported dragging itself along a road and it was assumed it was hit by a car. It turned out it was shot in the spine (during deer season). Long story short, the Wardens trailed the bear and found the woman that shot it. The woman said she saw something moving in the bushes and thought it was a deer. She got no ticket because there is no law covering killing a bear by mistake.
Anyway, I really don't pay attention to "super law abiding hunters" since I caught a rather well known outdoor writer intentionally breaking the game law when I was checking my fox traps one day.