Thanks Tim, our 2960X switches only support up to 65535 seconds or roughly 18 hours maximum. I've also found in Cisco's Wired Authentication Guide that they recommend not setting reauthentication on MAB as it could interrupt connectivity and does not actually validate the MAC address of the device, just the MAC learned on the port initially. With all of that information, I think we're going to just disable the reauthentication interval all together. Wired Authentication is new for us, so we've been able to track devices without the CPPM logs, so I think we'll be OK from that perspective and the troubleshooting is only useful for authentications, which won't be taking place unless the port status changes.
Thanks for your help.