Change the "Fast Retry" interval for Package and Program deployments

Hi all,

I've created a Package and Program for a driver update utility I'm deploying which I've configured to run on a schedule. I've configured my script to exit with error code 1618 (the "Fast retry" exit code) under certain conditions (the computer is running on battery, or an update would require a hard reboot and the user chose to defer).

Unlike the Application model, which I believe has a retry interval of 4 hours when a "Fast retry" exit code is returned, my Program seems to re-run after only 10 minutes.

I found some information that indicated this setting is stored in the Site Control File. From this article on Anoop's site, I learned that as of SCCM 2012 this file is stored in the DB and used the query provided to view it. Sure enough, I think I've found the relevant property under the "Software Distribution" CLIENT_COMPONENT node: "Execution Failure Retry Interval", but editing this directly appears to be unsupported and scary.

Is there any supported way to change this interval?