So the title is a little vague, story is in the spoiler and questions are below.
About a year ago the crazy dude in the apartment below me banged on my door one day about a year ago and accused me of hacking his wireless connection and screwing up his internet after talking to him for 15 to 30 minutes which included him threatening to call the FBI I decided he was crazy and politely shut the door. Fast forward to today where I'm walking out of my apartment and he utters a few threats, something about beating me up if he finds me someplace else and other stuff, I ignore him and jump in my car, turns out he's following me and at a stop sign he taps the back of my car though he causes no damage, after I get out, which probably wasn't the smartest move, a cop happens to pull up and tells us to follow him off the road. I give the cop my story and then the crazy dude goes on about me hacking his internets and admits to following me from the apartment. The cop let me go after a little bit advising me to get a no contact order from the courthouse and saying that he probably won't be able to do anything about the crazy guy though he did mention something about medical help.
just in case it matters, I'm a guy but have never been in a fight in my life so I'm not to confident about standing up to a vet if things somehow got violent.
I'm probably going to end up moving since I don't really feel safe living above this guy, but for the time being is there anything other than getting a no contact order that would improve my situation or anything I can do to keep myself safe since the guy seems like he's off the deep end?