Not a true fungus, yellow slime mold is a colony of protists often found in piles of wood chips.  It dried up quickly in the heat of the sun.  When its time has come to fruit, the cells move into pools and form single-stalked fruiting bodies.  Some are sacrificed as the base of the stalk and others will escape into the Hampton Park air.  This is what looks to be the “dog vomit” variety.