Update: I figured it out!
For anyone who is wanting to SIM Network Unlock their L9 that is running a custom ROM here are the steps:
1.) Backup you custom ROM in recovery.
2.) Flash a stock ROM in recovery.
3.) Enter the unlock code after booting the device.
4.) Restore your custom ROM in recovery.
Get your stock ROM CWM backup from here: http://forum.xda-developers.com/show....php?t=2136204
***Remember to unzip the CWM backup to /storage/sdcard0/clockworkmod/backup/ or wherever Clockworkmod stores its "backup" folder.***