I have searched extensively and reached out to many people, but no one seems to know of a mod that allows a user to cover a body with a blanket or something instead of leaving it exposed in the street or wherever it falls.

 

I am throwing the idea out there in case someone has the skills to develop something like this. I also thought of trying to add it into the scene manager as a prop as well, but I am not sure how to design the blanket.

An alternative is using stopthepeds coroner, they pack the body in a bodybag, which you can replace by a custom model.