Interesting question. Do they rotate though, so every cop gets a turn in 911? Part of a training policy? Was this in leu of adminitrative leave due to an infraction? Did the cop have surgery, and was offered this station instead of burning sick leave?
But, at the end of the day, does it really matter? I don't know about your job, or your workplace - but we have very harsh and severe penalties for co-workers who use profanity to people outside of their department. For example, imagine a Navy (Sailor or Officer) walking up to an Army Sgt. and telling him "I need you to f----g (insert anything here". Let's just say that it wouldn't be a good situation. Getting hung up would be the LEAST of your problems.
Now, what happens within your department, at least among co-workers, is just fine and dandy; providing it's not done to insult. Just watch your mouth when dealing with outside parties. So, for the sake of habit, if nothing else; our languages here is very 'G' rated. If nothing else, it makes for a friendly work environment.
Depends on the situation. If a Navy sailor said to an Army Sgt "Hand me that f----g stapler", it would be appropriate to tell the Navy guy to watch his mouth.
If a Navy sailor said to an Army Sgt "Get your guys and grab your f----g guns, we got pirates coming over the railing!" and the Army Sgt did ANYTHING BUT quickly comply, I would have the Sgt court-martialed, if not thrown overboard.
In an emergency situation where lives are potentially at stake, EVERYTHING takes a back seat to dealing with the emergency, including being bothered by bad language.