Access between front bumper and radiator?
 

I put some fresh OEM air filters in my turbo s the other day just for fun as I recently acquired it. While removing the beauty covers I noticed there were a few of the plastic screws missing that hold the plastic covers together. I ordered a handful of these just to have spares in the future.

When I went to put them in today I dropped one down between the radiator and front bumper. Of course us porsche folks are too picky to turn our head like this didn't happen. While looking down for the screw I noticed some additional loose plastic / rubber items down there as well.

How do I access this space the easiest? I was going to try to go from the top ( engine compartment) but with all visible screws out it still seems solid. Is there a screw I am missing somewhere or is there a better way to do this?

Thanks in advance