Are you required to provide your name and phone number to the sales associate? If so, is there a follow-up section in your report? That would cover your not returning as well as not making a purchase. By not making a purchase it definitely covers any final attempts to earn your business before you leave.
If you are not reporting on a follow-up call, couldn't you have called and asked about reserving the item until you could return the next day?
My posts are solely based on my opinions and for my entertainment, contact a professional if you need real advice.
When you get in debt you become a slave. - Andrew Jackson