reverse geocoding with a composite locator

[SandraLuken]

ArcGIS 10 SP5

Can you reverse geocode against a composite locator but only return a result from a specific locator within the composite?

I was hoping there was a way to do something like the following.
http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Locators/ESRI_Geocode_USA/GeocodeServer/r...&loc=ADDRESS

Unfortunately the API documentation does not mention this functionality, so am wondering if others have found an alternate solution.

Thanks,
Sandra