The registry number on the side of the shuttle would seem to suggest it's not the Enterprise hangar deck, and comparing this to the
trailer screencaps of the Academy shuttleport (
blimp hangar, heh 
) doesn't lead me to think they match, either, but it's hard to make a clear call, one way or the other. The black-and-yellow caution tape seen in two places does fit the Lebec powerplant location, but it's still unclear what in-story setting that's supposed to represent. The one problem is that the shuttle seen in the spy photos from when filming was taking place show only a shuttle with 1701 markings.
I know it didn't seem to match the "Academy Shuttleport" (the Paul McGillion shot), but I think that's only because we couldn't see enough of it.
Here is a comparison of a photo of the Blimp Hanger at the Tustin (Calif.) Marine Base (the actual filming location) and the trading card photo. This shows some elements common to both:
http://i205.photobucket.com/albums/bb116/tpresto/Tustin_compare_JPG6.jpg
[hanger photo courtesy 'arbyreed' and flickr]
So if that IS Spock, then either he got to that some "shuttleport location" that we all assumed was at STA, or possibly Abrams is cheating and using the same filming location for two different in-film locations (which I doubt).