I experiences a somewhat similar situation at Sally's several months ago. Fortunately, the associate (I think she was actually a manager), was much more tactful and I was able to turn it into a positive interaction. I was purchasing the AIA Coconut Co-Wash and the associate made a comment along the lines of "are you sure this isn't going to be too heavy or your hair?" I very politely explained that I already had the cleansing pudding ad the leave-in and loved them both. She then complimented my curls and said she'd never thought if trying the AIA products (she had obviously borderline damaged curly hair), so I gave a brief explanation of CG and gave her the name of this site.

3a/f/iii
Modified CG since 11/5/11
CLEANSE: VO5 Vanilla Mint Tea Clarifying, DevaCare No-Poo, CHS Treatment Shampoo
RO: DevaCare One Condition, SS Caitlin's Conditioner, Mop Top Daily Conditioner
LI: SS Repairing Protein Treatment, CHS Silk Leave-In
STYLE: Re:Coil, Curl Keeper, Deva Ultra Defining Gel, Curls Rock Amplifier and Strong Hold Mousse, Sweet Curls Elixirs Okra Gel and Hard Hold Gel, SS Curl Enhancing Jelly and Firm Hold Gel