I needed to take mine off when I installed my new grille. Goto your local Ford dealership and ask a mechanic to take it off. It's some kind of security hex wrench so nobody steals it...
You need a star or torqes bit style driver with the hole in the center to allow for the pin on the screws. I found some at a local parts house but I am sure you can find them at any tool supply.
Yeah you can find that tool at any local hardstore store, no need to go to Ford.. it's just a torx bit or something.. can't help ya any more than that though =\