More to the point, as Glaser realizes in an update, the AP is full of shit here and there's nothing to talk about. If they want to take this to court, they can, but there are no guidelines to be negotiated here. They don't write copyright law or get to determine its precise boundaries. It isn't for them to determine what is legal fair use and what isn't.
AP has no more right to charge you for quotes than I have to open a toll booth on the sidewalk in front of my house.