Absolutely. Logic dictates that. Why push so far for a blood draw from an innocent victim of a road chase where perp and cops crashed into the victim? Unless it was to deflect blame away from the cops. They were pushing the nurse to disobey hospital rules and procedures, and pushed way too hard. Guilty cop.
It's more than that. Nurses follow the orders of physicians. It is illegal for a nurse to do any procedure that isn't ordered by a physician (routine things are covered by standing orders that apply to every patient). A nurse can't arbitrarily decide to draw blood, period.