Roosevelt Island Main Street Yield Sign By Gristedes Intersection Flattened Like A Pancake - Is A Stop Sign Needed At Intersection?

Image of Flattened Main Street Yield Sign By Gristedes

A  Concerned Roosevelt Island Resident reported this morning:

Saw early this morning that the pedestrian yield sign by gristedes was completely flattened;

Image of Flattened Main Street Yield Sign By Gristedes

the metal rod was bent as far back as it could go. I'm assuming only a car or truck could cause this? Can you imagine if it was a person instead of the sign? As a side note, this is a terrible crossing and I always wait until the cars actually stop (and not just the driver waving me across) before I cross; often they don't stop at all and seem oblivious to the sign.

Image of Flattened Main Street Yield Sign By Gristedes

Is a stop sign needed at this location?