Force debug in safe mode via USB?

I did something so stupid I'm almost kind of proud of it. I rooted my LG Optimus T (Froyo) using Gingerbreak, cleaned out a bunch of stuff, and accidentally deleted the home screen launcher. No big, I'll just install a new one... but I have a chicken and egg problem now, that requires debug mode to get out of. I can't just open settings on my phone to set debug mode. And the phone only starts up in safe mode. So the tl;dr is this: I need to force my phone into debug mode via USB, in safe mode. If I can't do this, I will have to buy a new phone. Please help me!