<human>: Can you condense the text into three sentences or less?

My military husband and I live next to a man who plays loud music at all hours of the night, slams his door, revs his car at 2AM, and so on and so forth. We put up with this for around 7 months, and called the cops when we felt it was getting ridiculous. We have probably called 7-9 times.

About a week ago, my husband knocked on his door to try and talk to him, calmly, and ask him if he could please just be considerate. He didn't answer, so my husband came back inside. 

Three hours later, at midnight, he banged on our door so loud it woke me up, and then slammed his own door shut. This continued for a week.

Today, we go outside to find that my husband's side-mirror, on his half a year old car, was completely slammed off. There's a dent where it is obvious someone hit it with something blunt, like a baseball bat, and the mirror is nowhere to be found. The kicker? The side that was vandalized is parked next to a motorcycle that never moves. 

Now, I may be diagnosed with high anxiety, but this really scares me. He has called the police, his insurance company, and he might get the military involved. We have also told the landlord. What all can we do to protect ourselves? Do we have any rights if we don't have proof? I am legitimately scared to go outside my apartment door.
<bot>: Neighbor harasses us over the course of 6 months, tops it with a cherry by wrecking my husband's car side-mirror and I'm now scared to death. What can we do?