Join Date: Jun 2006
Location: Eastern ON Canada
Car: 07 OBW 2.5i D-4AT
Feedback Score: 6 reviews
The hinge "screw" at the right end of the glove box is actually not a screw but a plastic push in pin. If you turn it about 1/4 turn counterclockwise, the center should back out. Then the whole pin (center and wider part around it) can be pulled out, and the right side of the box will be free.
Also, look at the DIY forum here. There are several threads there on replacing the cabin filter, and I believe one is for the 08, which should be close enough to your 09.