My stepdaughter and her mom often vacation on the West Coast not far from your city. They made me aware of your over abundance of bunnies and also gave me part of the article from Oct. 19.
I agree, it would be a shame to round up the rabbits and shoot them. The article said you were looking for ideas and I may have one for you.
To humanely take care of community cats, dedicated people use trap-neuter-return. Community cats are cats and kittens with no homes, who are attached to each other and to where they live. Kitties over eight weeks of age are trapped, taken to participating vets, humane societies, etc. There, they are neutered, given thorough physical exams and treated if need be. Then they are returned to their community. In the case of the kitties, people often feed them and provide for their needs during cold winters and hot summers.
Something similar to trap, neuter and return might be useful for your bunny population. In your situation, food is less of a problem. You might be able to fund this through normal donations to animal societies or perhaps by a Go Fund Me page.
There are several organizations that support TNR across the nation and around the world. Two that come to mind and that might be able to help are:
Best Friends Animal Society, Kanub, Utah: bestfriends.org/straycats.
Alley Cat Allies, Bethesda, Maryland: alleycat.org.
I hope this information is helpful. Good luck.