I don't think saying hello to someone in passing in a supermarket constitutes a conversation. Now if they had STOPPED and actually had a conversation beyond the salutation and insult, THEN it would qualify. If I had run into a friend or acquaintance in a supermarket, they were talking on the phone, I said "hello" and they responded with, "hey! Chrissy pissie!" I certainly wouldn't have considered the exchange a conversation.
I don't think this movie passes.
Julie does speak to Detective Parker, but it's about Kale's criminal activities, his house arrest, and associated fines.
Ashley's mother calls to her, but Ashley does not respond.
However, there is one fleeting scene in which two named female characters talk to one another:
Ashley's on her cell with Kale and following Mr. Turner in the grocery store. Preoccupied, she literally runs into classmate Minnie Tyco, causing her to drop the phone. Minnie greets her with "Ashley!" and Ashley, a bit frazzled, refers to Minnie by a derogatory nickname, "Skinny Minnie," to which Minnie asks, "WHAT did you say!?"
That's all we see of the scene, though, and my first impression was that Ashley was talking to Kale during her meeting with Minnie. (She's scrambling with the phone throughout the scene.)
Because this is the only scene in which the movie's female characters (of which there are few) talk to one another, I think the movie passes on a technicality, but not in spirit.