Absolutely rude and disrespectful employee

At 6:28 PM I walked into a store that closed at 7 PM and I was approached by a sales associate in Brittany, who was extremely rude to me. I explained that I already canceled my service and that I already did all the work on the phone and all I needed to do with hands in the equipment. She was rude and told me I needed to leave the store. I told her that it did not close for another half an hour and I was going to wait. She told me that I could sit there an hour. No one will help me. She literally continued to tell me to leave the store. I asked for the name of the manager, and she arrogantly said that she spoke with the district manager named Emmanuel and that she’s not obligated to give me his phone number, but he already knows and he doesn’t care. She was raising her voice to me and talking incredibly disrespectfully. This is not a person you should have dealing with the public. She was extremely rude and arrogant.