won't work. my garage door opening is 74". that only leaves about 18" of clearance over my roof. I even knock off the wilson from time to time, and I creep into the garage.
I listen for the wilson when I pull in and use it as a reference for where to stop, when the antenna goes BOING and snaps back up, hitting the roof trusses, I'm in. too much more and I start breaking the fluorescents.
I've considered tying one over, but I'm not sure how that would work out broadcasting. or of the legality of it. the tie down might be considered a vision obstruction.
otherwise I'd have to mount it just inches off the ground to even think of pulling in the garage..