You *should* be able to pull the cable with pliers. If that doesn't work, you will have to try to access the latch from below, somehow. When you do get it open, lube the latch assembly.
Thanks, but no thanks. I'd rather jury-rig something (cutting the cable and threading it through an opening near one of the headlights). Actually, it's far more likely that I'll be lazy and do nothing about it until I have to lay down in the snow to open the hood (and even then...).i have the entire hood release for sale.