Contact Lowes corprate and give them the store number of your store (if you have a recept from the store it will have it listed usually) or just give them the state/city your in and they can get the info that way. Inform corporate of the rude and utter lack of respect given to you and other customers of that store.
I found the following on their website.
https://www.lowes.com/lowes/lkn?acti...ustomerService or for more info on how to contact
http://www.lowes.com/lowes/lkn?actio...opic=contactUs