I screwed the sand anchors and tied my trailer/boat to them AND added about 5 gallons to each hull in preparation for hurricane Wilma. Boat/trailer didn't budge, despite 120 mph sustained (plus gusts) hitting it (we were near the eyewall).

I did orient the trailer in the estimated direction of wind, so the bows were pointed into the wind for the first 1/2 of the storm, and the sterns got it for the second (and stronger) 1/2 of the storm. I also removed the trampoline.

Thankfully, I parked it in an open lot, so there was little debris impact other than small/medium sticks and palm branches.

Having lived through that, I don't see any reason to sit through another hurricane listening to debris strike the house and screen enclosures self-destruct.