Condo owner wants to prevent garage bays from being rented to public

I live in a 32 unit Minnesota Condo Association. We have eight extra garage bays to rent out. The Board has recently decided to rent them out to non-residents, which is against the Bylaws. This also presents a security issue, as the dividing walls between bays are open on the top. We are not licensed by the city as a public storage facility, nor will the city get involved.

I would rather see the garage bays empty until an owner or resident takes it. How can we as condo owners prevent the Board from renting these bays to the public?