What part of the latch has broken? If it's just the handle, then get that stinker off and use a pair of pliers to pull on the cable (there is a ball at that end). If it's stuck, have someone bounce the hood while you keep pulling on the cable. If it's the secondary that won't pop out, that can just be pried out from the grille (I've done it with my bare fingers). If it's a busted cable...
Can things get any worse, Broken w123 hood release cable
Hood cable, hood latches, hood release, HELP! cannot open hood!
If you just want to bust your grille, I'll mail you a decent one with fading but no cracks for the cost of shipping...
__________________
"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____
"Your sense of humor is still loco... 
" -MBeige ____
"Señor Luna, your sense of humor is quite järjetön" -Delibes
1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod
2 Samuel 12:13: "
David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."