Googler, Abby DeBellis, from the Google Local team, said in a Google Local Help thread that some businesses that have Google+ Local pages should delete their Google+ page.
Which ones? Those that do not accept customers at their location. Those businesses should have a their address hidden, according to the terms of service. And because those businesses should have their address hidden, they are not supported within Google+ yet.
Abby explained:
Will this change? It appears so. But how soon? No idea.
Forum discussion at Google Local Help.