Her discussion with the police was, of course, a public conversation. That's why it is puzzling that she used heavy-duty profanity, repeatedly. The "f-word" was just a part of that. In addition, there was the "c-word," the gutter expression for referring to a lowlife woman. Here is an audio of all that.
Of course, over is Bristol's front-line positioning in the movement for Christian values. She had a good thing going. Many of us who didn't like her or her ideology admired her shrewd opportunism. For a young woman she had gotten far. Now she will have to put together a new meme. It could be what she had learned from this out-of-control experience.