It was a threat of violence. Of course and officer would stop that.
Depends, on State's Laws, a person has a first admendment right...
If said it in person---but an act must occur...you being fearful that a act may or may not occur is up to interpretation...will a dude being 10 feet away from you, staring you down put you in fear? Would a dude who said he was going to kick your ass put you in fear--especially when he is shorter and possibly 20 yrs older than you?
Youare making the assumption that a officer would or would not give a shit.
Plus, on the real, y'all need to learn how to handle your own damn differences instead of getting the law or the courts involved...
And BTW, he is just wolfing at you, you know that...