Garlic didn't work for me when I was trying to protect my garden from rodents. I was so fed up with them that I mixed a paste of water and chili powder, cayenne and super hot sauce and literally hand painted the leaves of my plants. I don't think I've ever seen a rabbit go beserk before-- I felt rather bad watching it hop around in utter confusion and pain.
But it worked. Obviously painting plants is really long and ridiculous, but if you mix the spices (forgo the hot sauce) with flour and dust your plants liberally, it should keep them off until the next rain.
Maybe. Or maybe you just have very determined chipmunks.