I sent LG an email requesting an unlock tool for the bootloader, and this was their reply :
Thank you for contacting LG Electronics
------Reply to Your Inquiry-------
Dear Daniel Cabarcos Jr,
We do not support or have any information about unlocking the bootloader or altering root level system files as this may void the warranty on the device.
Please feel free to contact us if you have any additional questions or concerns. Thank you again for contacting LG Electronics.
E-Mail Administrator Customer Interactive Center LGEAI (800) 793-8896
I'm going to answer letting him know we've have root already, and that it would be in their benefit to provide us with the tools, as it would encourage development for the phone.