TODAY is a Great Day to visit our Store and order the parts you need for your truck ! ! !
Incase you haven't already figured this out. there isn't any access to the latch from the front of the truck..not even with the grill removed.
One thing to try that won't damage anything is to drill a dole through the upper core support on the driver side of the of the latch and you can push a screwdriver up to manually try and push the release while you got the grill out.