"Percival P. Cassidy" wrote:

The fluorescent
lights in question are the CF ones in the original ceiling light sockets
-- but whether they are on or off makes no difference.

You could always unscrew the CF bulbs from the sockets and remove
them from the garage. If you still have the same problem (I
STRONGLY suspect you will) you will know for sure that their
explanation was BS.
--
I just heard a TV commercial about an automobile that has a rear
entertainment system. I immediately wondered exactly how would an
automobile entertain one's rear and would it be safe to drive while
one's rear was being entertained.