The objective, in cases like this, is to be there when the playground asphalt is ripped out (hopefully revealing yester-year's terra-firma) yet before the incoming artificial turf is laid in.
That period of time might be only a single night or two, before the incoming fill-dirt is brought in to prep. for the artificial turf. Gotta act fast, and be there on the exact-correct night, in these old-town demo. situations.