What are you saying, on the way out?
That the WTS was fighting new taxation (presumably in a rightous way) like the Boston Colonists at the Boston Tea Party? I don't think so. They never do anything for the "public good", only for the "watchtower good". They could care less if other businesses got taxed to death.
Anyway, sales tax is not a "new tax". It has been there for a long time in most any state you can name. The Watchtower was just hiding behind their "religious non-profit" status to get out of paying it like every other business. And were about to get ruled against.
Knowing they were going to lose this one, they stubbornly backed themselves into a corner and shot themselves in the financial foot with the myth of the voluntary contribution.