It's a framework so you can modify the reports however you see fit. You could possibly do something using database extended properties and modify your conditions to ignore databases with a specific
property set. Here's a post I did using this technique that could modify and apply to your workflow.
http://www.sqlchicken.com/2011/10/expiring-databases-and-policy-based-management/
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http://www.sqlchicken.com/2011/10/expiring-databases-and-policy-based-management/
Sent from my Windows Phone