Middle finger. (Illegal?)

So I have lived in my apartment for about a year now and this family moved in and took our parking spot, and would often be just plain fucking annoying in general. So one day they pulled in my parking spot that I had been parking their for a year and I shot them the bird, when I got out of my car the lady was yelling why did I do that and she got it on her phone and blah blah blah... I didn't say nothing and went inside. The next day I get a call from my Landlord of my apartment complex saying that I need to respect my fellow neighbors and that they called the police on me for flipping them off and they felt threatened that I did so. What should I do to "legally" piss them off next?

poop every day to them under the door

Middle finger isnt illegal lmao? Its a cultural thing, thus i dont believe showing a middle finger is a crime lmao

Just stay calm and not give a fook.

You know they're your neighbors. It would be the logical decision to be calm and collected around them and their decisions.

If the only thing you two know about each other is "taking a parking spot and flipping someone off" then every time you have to look at them (say when you're getting the groceries) it is going to be awkward for everyone. If you simply stated "bruh, you know that is not your parking spot" then the whole situation would be a lot calmer. They probably would say "oh, my bad" or "bruh, you got it wrong" and then you just go on your merry way.

But flipping someone off escalates the situation. When the situation escalates, a person's fight or flight response may get triggered and people get extra-retarded when they're in fear.

It is like asking a child what is the square root of 81. Most of them aren't normally prepared to understand how to react to that situation so they end up being incorrect. There are however, a couple people who are trained to deal with that situation so they will do the right thing. Same thing applies to escalated situations. Most people aren't normally prepared to understand how to react to that situation so they end up doing what their base instincts tell them to do, which is sometimes right and sometimes wrong. There are however, a couple people who are trained to deal with an escalated situation so they do the right thing.

Throw eggs at their car

Wait for a few weeks and then Throw eggs at their car

add a 100% black tint over all their windows

Should've just negotiated with them.

Instead of pulling the middle finger, you could've kindly notified them that you normally park there.

But in this situation, I'd tell the landlord that they've taken your parking spot and been loud etc