Rant/advice needed

Caitlyne • Bonus mom to 2💜💙 Bio mom to 1 💜
I made a post maybe 2-3 weeks ago about my ex, who's living with me, using my car and taking full advantage of it. 
**im 16 weeks pregnant, and when he broke up he got back with his ex** 
He got kicked out, and so we let him stay with us and use my car to go to and from work. I asked my car only be used for work because I wanted access to it as well.
Well, here we are 2-3 weeks later, things seemed to be a bit better (he made an effort to get me the car back as soon as he was done work) 
Well yesterday, he was supposed to get off at 6. I find out he went to a friends house at 8, and I didn't get ahold of him until 10. 
He had asked me a few days ago if he could go out on Sunday (today, well technically yesterday) I said yeah that's fine, (he'd be using my car) that because my moms around if I needed a car I could use hers. 
But I asked he come home (or at least my car) he's off Monday, and if he were to spend the night out, he'd be out all day Monday and I wouldn't have access to my car all day. 
It's now 5:11 in the morning on Monday and he's not home and isn't picking up his phone. 
I know I didn't give him a time or anything
But am I wrong for getting upset that he (my car) still isn't back at 5:11 and he's not even picking up his phone... 
Like for all I know he's dead on the street somewhere... 
& it's not the first time he's done something like this, he usually just fucks off after work till 8 or 9 when he's supposed to get off at 3. 
I don't know if I'm more hurt, scared or pissed right now. 
How much longer should I wait until I get police involved? **i don't know where he is and if he's alive** and he's not answering any calls or texts. 
It takes about 30 minutes to get to my house from where he is, so I'm gonna try calling again in a few minutes (30 minutes after my first call) in case he's driving... 
And kicking him out or telling him no car isn't something I wanna do because of his attitude (he can be emotionally abusive) and I've gotta deal with him the rest of my life because of the baby.