Brothel scene?

NAVY BLUES was one of several Hollywood films from 1940-41 that were intended to both cash in on and promote the U.S. military build-up prior to Pearl Harbor -- cinematic recruiting posters.

One brief but interesting moment in this film: There's a scene about 45 minutes into the film, after Homer Matthews (Herbert Anderson) has transferred to the "Cleveland," in which he's walking down a Honolulu street with Cake and Powerhouse (Jack Oakie and Jack Haley), and he looks up at something out of camera range. "What's that?" he asks, and Cake replies, "Oh, that's a girl's school." There is a brief insert shot, less than two seconds, that shows about 10 women (modestly dressed but attractive at that distance) standing on a balcony overlooking the street, about 30-40 feet from the camera, as a single sailor serenades them on a ukulele. The women all smile down at the camera and one of them waves.

If WB did location shooting in Honolulu for this film, I am wondering if that shot was actually taken outside one of the numerous brothels in downtown Honolulu, made famous (for those of use who weren't there) by novels such as FROM HERE TO ETERNITY and THE REVOLT OF MAMIE STOVER. One can imagine the filmmakers deciding to put one over on the "Hays Office" and inserting a little inside joke that would no doubt be recognized by thousands of servicemen and others who had visited Honolulu, but would go right over the heads of anyone else.

Anyone have any further info or documentation on this?