The biggest problem I have with smartphone shops at the mall is taking the photo afterward. I find it more difficult to find an unobtrusive spot from which to get a shot of the storefront. The other day, the salesperson who waited on me was standing looking out the front of the store for forever. The only place I could go to take the photo was in the hallway leading to the restrooms, and even then, I could probably be seen from the store (thank goodness the guy went on break just as as I was maneuvering into position in the hallway). Last time I did one in a mall, I had to crouch behind the jewelry kiosk across from the store, without the employees of the store or the kiosk seeing me!
When I do standalone locations, I can go across the street to another parking lot or hide behind my car in front of the phone store.
I learn something new every day, but not everyday!
I've learned to never trust spell-check or my phone's auto-fill feature.