2006 CRD Touring
I've just checked this and confirmed that the hole is big enough to view the pinky thing and get a finger in touch it.You can get out of Park, if you need to move the car, by using a thin blade screwdriver inserted into the hole under the adjacent rubber mat. There is a description on the Forum somewhere. I haven't had need to try this myself yet, but I carry a suitable screwdriver just in case.
I think the screwdriver method referred to obtaining access from the top.