@Kevin Carwile, I think I've done it. I created a new rule in the Rule Set, and triggered it when "any content has been created."
Then in the Rule Actions, I changed "member:name" and "member:id" to "content:author:name" and "content:author:id" in the new rule. The Unique Scheduling Keyphrase should be the same, so hopefully that also delays the action.
The Subject and the Email Message are the same, too (except the member:name stuff swapped out for content:author:name).
That should do it?