Attempted to replace the fuel filter on my 2006 3.0 today but one of the bolts that holds the huge undercarriage panel up is rusty and stripped as I tried to remove it. Now it just spins in place but is still holding the undercarriage up and therefore I can access the fuel filter.

I’ve never had to remove a bolt like this. What should I do? I tried penetrating spray but it’s stripped, just spins. I tried prying at it but of course that didn’t work. Any hints would be greatly appreciated!