As you can see there is a multitude of ways to handle the ground issue.
What I would do would be to call the inspection department and talk with the inspector that covers your area and ask him/her directly.
Quite simple - a quick phone call and it's free. If they inform you to just go ahead and install and cover with out any inspection be sure to get the inspectors name (with correct spelling), the date and time of the telephone call, write down everything that you asked and the inspectors answer. Let the inspector know of your concerns about future issues.
Take a couple photographs of the installation. Close ups of the connection points of the copper to the rods, lay a tape measure along side of the copper between the rods and get a photo of this so the future inspector can see the distance between rods.
I did this when I built my house - as I drove my ground rods prior to back filling the foundation. The tops of my ground rods are 6 feet below the surface this puts the bottom of them at 16 feet - (yes I used 10' rods)