How to install a new launcher after deleting the only launcher?

I deleted my only launcher and now I cannot open settings to set to debug mode in order to use ADB or similar to install a new launcher. I can't open the Play store, can't open anything except those that use voice commands: e-mail, text, phone, maps, navigation, and note to self. Oh, and it only boots in safe mode. It's an LG Optimus T. How do I put a launcher back on this phone?