Followup question to another post

[Ref in PA]

I would blow my whistle - not for the violation, but to get an object off the floor that came into play. If the play continued without touching the towel/shoe, I would NOT stop play, but allow sideline personnel to reach out and clean it up. I would only blow the whistle if I felt the object came into play - and then to get it cleaned up (stepping on the object obviously brings it into play). I want to prevent an injury of a twisted or broken ankle.