Here is the situation. My roommate and I are on 1yr lease which will end at the end of August(in CA). I have given notice by text to my roommate that I will be leaving the apt by end of August (he replied that he doesn't believe me). The car parking is tandem parking for my apt, so roommate and I had exchanged spare car keys at beginning of lease with the idea that either person can drive each other's car if needed instead of having to contact each other to move his/her car in the tandem parking spot. Recently, he requested his spare car key to be returned to him and I complied within 1day. A day later after that, I requested for my spare car key but he did not return it nor did he reply to repeated texts from me to return my car key. In one of my repeated text requests, I reminded him that I returned his car key in good faith and that I want my car key back by xxx date(xxx is a date which has now passed). I noticed that he has moved my car twice even after my texts sent to him. I thought to get picture of him in my car but I'm not near the parking spot to hear my car being turned on. My questions are 1) what are my options to get him to return my car key? 2)is it consider stealing my personal property car key since I sent him text requests? 3) is it unlawful for him to drive my car since I sent him text requests to return my car key? 4)will the LA police come if I want to confront him to verbally request my car key because I'm afraid of his hostile attitude (he said some words though I don't have any of it in writing from him) 5)can I request he be arrested for driving my car?