If it is that much an issue I would remove some of the hood seal near the windshield. All the heat really needs is a small crack and will readily convect up out cooling very quickly. The wifes old G8 I removed the plastic fake scoop covers and it cooled down significantly faster. The old 73 Corvette 454 i would lift the hood and put a .5 inch spacer.
I can appreciate the High Tech approach to the problem but a low tech solution would be far superior IMO.
What I've done successfully in the past is spacer the hood hinges.
I got VERY tired of everyone saying the hood would snap off in a head on colission and decapitate me so I had to get rid of the hood hinge spacer.
This vehicle never sees more than 15 MPH unless it's on a trailer --- in which case I'm not in it anyway! Of course I should be VERY worried about a head on collision.