Follow up: Gimbal is at DJI being repaired or looked at, also sent Gopro an email asking them if it was covered explained what happened, here is the reply:
Update for Case #1022433 - "GOPRO BURNED UP!"
Hi Chris,
I'm very sorry I took a look at the website for the Zenmuse H3-2D Gimbal you're running and the power output on those things is hard core. All our camera models cannot accept any power source over 5 volts 1 amp rating. Anything higher than that will eventually roast these little guys.
We do want to see what we can do to help you out though. Could you please reply back with your original sales receipt for the purchase of your camera, and also include the date this incident happened. I will have some of my colleagues of mine and myself look some things over and see if there's anything we can do to help you out.
Many Thanks,
GoPro Support
http://gopro.com/support
Very surprised, and pleased....just have to find that receipt now.