the PGC is kind of contradictory to themselves: this topic intrigued me so i just did some research...
below are direct exerpts from the PGC Game Laws:
Sec. 2305. Retrieval and disposition of killed or wounded game or wildlife.
(a) General rule. - It is unlawful for any person who kills or wounds any game or wildlife while engaged in any activities permitted by this title to refuse or neglect to make a reasonable effort to retrieve, retain or lawfully dispose of such game or wildlife.
(b) Penalty. - A violation of this section is a summary offense of the fourth degree
Sec. 2307. Unlawful taking or possession of game or wildlife.
(d) Exceptions. - This section shall not apply to:
(1) Authorized individuals who euthanize critically injured game or wildlife, which shall be permitted when it is reasonable to believe that the chance of survival of the injured game or wildlife is minimal or the injured game or wildlife poses a threat to human safety.
(f) Definition.--As used in this section, the term "Authorized Individual" means any person who:
(1) Has 18 Pa. C.S. enforcement powers.
(2) Is a currently employed waterway conservation officer or deputy waterway conservation officer.
(3) Is a currently employed wildlife conservation officer or deputy wildlife conservation officer.
(4) Is a currently employed state park ranger or a state forest ranger.
(5) Is a veterinarian licensed to practice in the United States.
in another words, as in your case thinblueline, by all rights (PGC LAW), after an hour after sundown saturday night and an hour before sun up monday, if you down a critically wound an animal and need to dispatch it during this "no hunt time" you must make all reasonable efforts to dispatch the animal, which includes having one of the 5 categories of people notified and sent to euthanize the animal...
let's hope they are willing to take that "midnight trip" or go for a "sunday drive" to retrieve my deer...