not exactly comparable, but business denial of service was the cause of action in masterpiece cakeshop, a colorado civil rights case that appealed up to scotus

not exactly comparable, but business denial of service was the cause of action in masterpiece cakeshop, a colorado civil rights case that appealed up to scotus conscientious objection is a different case where you can fulfill your legal obligations in a way that's compatible with your religious or moral obligations -- if we created legislation requiring businesses to serve government agencies, there might be an implied right moral objection where use of force is concerned