Boy, this seems to be an issue all over the US. I agree with some posters - I don't want a "hoverer" either! But a friendly greeting goes a loooong way as does being able to answer questions or offering assistance. If someone threw my fabric to the floor, I would contact the manager but that is just me. I had to work retail while in art school (and for 3 years after - until I found a job) so I've been on both ends - customer and retail employee.
I would be willing to bet that the stores with the "unfriendly" employees don't have the business that the others have.
Like I said, I hope quilt shop owners are reading these posts!