Although I admit that bashing on FR seems pretty common here, this happening raises my eyebrow...
Imagine what have happened, if the aircraft had a problem during T/O! A T/O at a closed airport from a legal standpoint is veery questionable! The fact he "tested" the braking action with a car is no excuse, it is a ridiculous way and would have never been legally accepted.
My question: Would anyone of YOU commence a T/O under these situation? Sounds like a lot of commercial (or private) pressure...