I think Local 705 should go on strike, as they took their strike vote, and see how well that works for the employees, the customers, the local and UPS.
In today's economy, maybe just the change needed for all involved.
Then everyone can adjust to their new business models, to get back to where they were before the strike. Or just be out of business, except UPS, of course, my guess would be they would or are working on a new business plan, if a strike was to occur.
And the "closed shop" may not be open anymore. As opposed to your right to work states, who fall under the National Agreement, for their union members. Just a thought