Yes, you should say something because it may cause problems with future customers. If you decide to talk with her about it, you should try and meet up with her at a different location, perhaps a cafe of some sort, and when? after work as to not disrupt any customers or other employees.
If you don't talk to her about the perfume, nothing changes, she'll keep wearing the "intense" fragrance until she uses it all, which will take a while.
-P.S. if there's anything else I can add just let me know
Knock em' dead :)