Driver's door lock mechanism thing is coming out wtf
 

Today I went to open my car with the key (door lock actuators are both shot) and when I pulled the key out of the lock, the lock mechanism came out of the door a bit. I was able to get it back in, but it doesn't feel secure at all and if I pull on it then it comes back out. What the hell do I do about this, and would it be an expensive repair if I took it to a shop?
https://cimg4.ibsrv.net/gimg/g35driv...11983cd1a4.jpg

Set screw fell out, it's probably in your door panel. Take it apart and screw it back together.

Do you happen to know what kind of screw is in there? I can get into the door to access the screw hole through an opening on the edge of the door, but without the right screw I can't fix it properly. I looked on the infiniti diagrams and I think it's screw 80550A

All good, I got the little rubber piece on the edge of the door off and turns out the screw was barely hanging on so I got it nice and tight and the lock is nice and secure again. Thanks for the input though, wouldn't have known there was a screw holding it on.