That's actually a good plan. I'll be there momentarily.

[Crane breaks off the connection, and then you get a ten second shot of the note.]

[And then Crane's on his way to Eames' room as quickly as possible, having left the note as it was. He doesn't bother knocking and goes to open it, but hey, it's locked. So Crane knocks quickly, because he really, really doesn't want to be in the corridor right now.]