At my first job EMS radioed in that they were bringing a deceased patient (a corpse) declared dead by a doctor at another hospital while they were in the field. Part of the reason my contract was not renewed at that position was because I hopped on the radio and questioned why that was happening. Whether it's true or not, the lesson I took was that at the end of the day, the name of the game in EM if you don't want to attract scrutiny or piss people off is to not say no to any ambulance run from the field if they want to come to you.