Hello All,
I appreciate the feedback. I have been pursuing this issue with my local Ford dealer. As HazBeen said, your Ford dealer can look up the special service message, but I can tell you they won't look for it until you escalate with the service manager. Now that I am direct contact with the service manager, I sent him pictures of the damage, gave him SSM-53301 number, vehicle mileage and a picture of my door sticker showing the vehicle manufacture date. He has acknowledged the problem and said this will be covered under warranty. At this point, I am scheduled to visit the dealer this week so he can take photographs for a repair estimate with their recommended body shop. I'll keep this group posted as I (hopefully) continue to make progress getting my roof and spoiler fixed.
Regarding the service manager, he said to me as long as he can convince Ford (the manufacturer) to pay for the repair under warranty, I am happy to help you out. The SSM and the photos of the damage appeared to be sufficient. Regarding Ford (the manufacturer), I guess they think enough Expeditions are sold in warm climates that they are better off handling this problem as one-off fixes via the SSM. I think that's a rude move, but I'm sure their accountants think they can ride this out until these cars are off warranty and not their problem anymore.
In the meantime, I haven't been able to drive my Expedition on the highway since MLK weekend since I am afraid my now loose spoiler will blow off at highway speeds. I'm also likely to have the car laid up in the shop for a while until they repair it. The dealer's body shop will replace the entire roof, which is a big job. I still think a general recall to adjust the roof spoiler spacing would have been smarter, but that's too late now for me.
I will also say had I gone to my local body shop for this repair, they would have likely put the liftgate and spoiler back on more or less how they found it. I don't think they would have known of the SSM stating 6.5mm of spacing at the roof, meaning my repair would be another accident waiting to happen. So, if possible, go the dealer route. If you have to pay for it yourself, make sure the body shop creates extra space up top so you can avoid this happening again during the next snowstorm or freezing temps.