Here's David Morrell again, on showing and telling. "In practice, a certain amount of telling is inevitable. Otherwise, a story might never be completed. But it's useful to know which method you're using and to steer from telling to showing as soon as possible in order to provide the immediacy that is more likely to capture a reader's attention."
In this case, I agree absolutely. There are times when you have to "tell." There are times when "telling" gets you quickly through certain details that the reader needs to know in order to get to the exciting stuff that follows. That's the stuff you "show." Knowing when to show and when to tell seems to be the hard part.