Yes, Virginia, the door sensors deal just fine with garage impediments. Stopped short, as they were supposed to do.
I've been watching this thread enthusiastically - glad everyone got to share in the fun today (except me - I won't be back from Tahoe until tomorrow). I have been eagerly awaiting the garage clearance information. Whether it stops or not wasn't my concern - I trust Tesla thoroughly in that regard. My concern was more about clearance after it stops as well as speed in opening with obstruction. In the delivery event, the doors were markedly slower when opening obstructed vs. clear. I'm curious how that looks in practice, as well as how much headroom/clearance there is in the overhead situation pictured in your post.
Your plywood looks like about my roof level (8') in my garage. I am interested how likely it would be to hit one's head on the door. Also, how far out the door reaches when open (I have maximized storage in the garage and have shelving up and down the walls).
Thanks much for what you've shared so far and in the future. A great contribution.