answer: #Person2# was arrested because #Person2# unlocked and drove a car that isn't his.
documents: #Person1#: Why are you at the police station? What happened to you?
  #Person2#: Well, I went to a restaurant after work and after I finished dinner. I went to my car. I tried to open the door. But my key broke in the lock. So I called a slot company and they opened the car for me, then I drove the car home. And when I got home, I found out that this wasn't my car, so I drove back to the restaurant and the owner of the car and the police were there. They arrested me and took me here.
  #Person1#: Oh no.