Chipmunks are my bane in the summer. I don't put out vegetables, but the little buggers dine on
the edible flowers I plant to use for food & table garnish. In the past I have averaged trapping 5 or 6 each summer. (My grand total to date is 52.)
This year a neighbor's outdoor cat is doing the job for me--Frampton (named for singer Peter Frampton, whom some of you baby boomers might recall) has nabbed 4 chipmunks in our yard, bless his heart. He is always so proud when he collars a chipmunk & will bring the carcass right up to our back door so I can 'ooh and aaah' over it and praise him to the skies--which I do(!)--plus I break open a can of Fancy Feast in order to reward his pouncing skills which are not bad for a 13-year-old kitty (the vet tells me that is equivalent to 91 in people yrs).
At any rate, CynUpstateNY, I totally understand your frustration. One of my girlfriends has trouble with deer--those things can jump high fences w/ ease so she's given up on vegetable gardening.