So I had this happen. At this level, when everyone thinks there are three outs and you have 2 assuming there is no play happening I would call time. It ends the abandonment vs. scoring after folks left the field stuff as you killed it.
Note I would never call time if the OC or R3 was remotely aware of what was happening and trying to score, or if the defense was trying to make a play on the runner as they were abandoning.
PS: I am a long time lurker on this board and first time poster.