Does anyone know if it's possible to walk north from PBI?

My destination is an easy walk. On Google street view, it looks like the airport roadways have wide grass shoulders, and I wouldn't have to cross a single street to get to the North Congress/Belvedere entrance. But I'm concerned about being stopped by police.

Detouring over to the 8th Street entrance might work better. But while the map shows a connecting sidewalk between the terminal roadway and the 8th Street parking lots, street view from 2007 shows a big construction site in the way. Anyone know the current status?