Hi Goldenblues and welcome to Just answer.com, Super mechanic here.
The way you can get the hood opened on your Malibu is to reach up in there from the bottom with a long thin screwdriver and activate the latch release. It may help if you can have someone push down on the hood while you are doing this.
If you can see a part of the cable you might be able to strip the housing off and try to pull the cable itself with some pliers.
If that doesn't do it, you will have to reach up there with a small wrench and unbolt the latch itself, I am pretty sure it is a 10mm. Let me know, thanks