The Modern-Day 18 missing minutes?

This is a very interesting part of the Rove/Plame/Everybody in the White House story:

On Face The Nation, Gonzales said the Justice Department contacted him at 8pm and, after responding by saying something to the effect that everyone had gone home for the night, Gonzales asked if it would be okay if he waited until 8am the next day to notify The White House Staff to "preserve all records" etc. Gonzales got permission to do so, but then - again this is Gonzales speaking on Face The Nation - he said he contacted Andrew Card to informally tell him what had happened.