I took pics of a chipmunk on jujube tree. I think it may have eaten some. So far, yellow jackets have caused a lot more damage to ripe jujubes than any other insects or animals.
I live in densely populated neighborhood, not too far from you. That’s does not discourage raccoons or opossums to visit my yard. They are night raiders. Took me a couple of years before I realized that I should not have blamed squirrels for all the damages I have sustained.