I figured it out. There are three black bolts on the hood latch, as shown in this pdf:
http://www.deserted1.com/FSM/Repair_Manual...o/hood/adju.pdf The third one below might have a security bolt (an attachment goes over the head of the bolt, preventing access to the head) that is near impossible to remove. I ended up having to drive it out painstakingly using pliers to grip the treads from below. You also have the option of drilling through the cover if you wish. All three bolts are 10mm.
The end of the release cable had slipped lose from the cable sheath and I just had to crimp it back on.
I hope this saves somebody else from the unnecessary effort I went through.