If this manhunt took place in California, LAPD would have taken out 15 of the 2 suspects.

From what I recall from my European history class, Hitler actually refused to use chemical weapons. He had faced them during combat in World War 1 and knew enough about their effects that he was terrified of the thought of using them in trench warfare again.
Although that didn't stop chemical weapons from being used in some degree in the concentration camps.