If she asked to see your quilt, show it to her! Sometimes it helps shop owners to get an idea of what their customers like when they see completed quilts. I know THE best quilt shop in my area has done that since the day they opened & because of that they know their customers really well. They love talking about techniques used, materials used & they do notice what kinds of fabrics were used & whether they were likely to have come from their shop. They use that as free market research to improve their inventory.
There is a Repro LQS by me that sells 30's, Civil War & Downton Abbey fabrics exclusively. The other day my niece picked out one of their fabrics for the back of her quilt. They didn't have the 3 yards that I needed, so I ended up ordering it online -- and told them that was what I was going to do because my niece would never be happy if she didn't get the exact print she spent time picking out and she would insist that I pull the quilt apart & re-do it or "glue the pretty fabric on the back" (yeah. well... she's 3 & hasn't grasped the concept yet that a quilt needs to be sewn together).
They still encouraged me to enter my quilt in their annual quilt show (looks like it won't be finished in time, but they wanted it in there in spite of the backing coming from somewhere else & the batting being Warm & Plush, which they don't stock). The important thing, I think, is that if you are going there to use their shop space for sewing, the proper way to thank them is to spend $15-20/quilt in their shop either on classes, fabric or supplies. I've found that most quilt shops have a good deal on something and there are always those times when I realize I need something at the 11th hour & on-line orders wouldn't reach me in time.