For the past month or so, Google has been showing map pins on Service Area Businesses within Google. Previously, Google did not show pins on businesses without a public address but now they are, in some views.
Some are thinking this is a bug and some are asking if this is a new change.
This was reported in the Local Search Forum a couple of days ago and also earlier this month.
Here is one example of a landscaper who is a Service Area Business and it is showing a map pin for its local panel:
Here is a different example:
This has been going on since December, according to some folks in the threads.
So is this a bug or a feature?
Forum discussion at Local Search Forum.