While there is no baby at all--not even mentioned--in the film, what sounds like a baby crying is heard at the end while a character speaks to the camera. They yell at it to shut up.
It’s established in the first few minutes of the film that the two main characters do not survive. There are no partial victories, moral victories, or pyrrhic victories for the protagonists.
a scene where the main characters are in a car that is honking because the car alarm is going off. it doesn't last very long, I think maybe 30 seconds (off the top of my head).