RDS instance stuck in Deleting state

Question

Any advise for blowing away an Aurora RDS instance stuck in a "deleting" state.  
  
I was doing some experimenting trying to upgrade a test RDS Cluster which was making no progress.  When I looked further the instance had other issues where it wasn't fully started and stuck in a state of "Configuring-enhanced-monitoring" so in hindsight I should have checked this and not tried to upgrade the instance.  
  
As it is just a test database I tried to delete the instance but now it is stuck in a state of "deleting".  Is there anything I can do to forcibly blow it away?

Answer

Update: I left it overnight and the resource had deleted by morning.  I can't see anything in Cloudtrail to see when they were dropped.  I'd been waiting around 3 hours with a db instance in a deleting state before I gave up and logged off.  Anyway, I'm just happy they've gone.  Good riddance!

RDS instance stuck in Deleting state

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