[Granted, Sorey may not be in the immediate vicinity of the Welcome Center as Mickey tries to unlock the keyhole, but a beam of light like that would be hard to miss -- and so it's only a minute or so as he runs down the street, skidding to a stop next to Mickey.]
That huge beam of light -- did you see where it came from?
[-- wait. He seems to look harder (sometimes it's easy to miss obvious things when they stand on your blind side), and... blinks.] That is a really big key!