ActionScript :: Push To Multidimensional Arrays And Later Retrieve Just One 'row'?

I am reading a set of latitude & Longitude Coordinates that define a polygone area. They are keyed to an area ID and I retrieve them from a SQL database. So for example, Area ID 153 might have 20 coordinates and area ID 77 might have 11 coordinates. I wish to save these in a 2-D array indexed by the area ID, and where each coordinate pair is combined into one Google LatLng object. At a later point I wish to retrieve just one row i.e. the set of coordinates for one area, and send them to a function that accepts an array of coordinates and draws the polygon on a map. Here's what I have:

private var coordsFromSql:ArrayCollection = new ArrayCollection();
var polyArray:Array = new Array();
for each(var item:COORDINATES in coordsFromSql)

[code].....