Where does this take place? What's the conflict? Who is this person beyond his mountain bike and his job?

Some potential here, sure. But there's too much action without a character driving it. My reaction is to skip the dense, stage-direction paragraphs, and start reading where the dialogue starts.

Excellent stuff here. Carmen is a cool chick, a real chick, and readers will root for her through many pages to come.

Nice tone and patient description.
But does correct use of the comma matter in this world?

"A half-smoked blunt and a few sips of water from a dirty styrofoam cup made breakfast."
If a blunt will make breakfast, that's a seriously good blunt. I want one.
For real.