tammy

I went to work this morning and tryed to get in the office to turn the alarm off but my coworker looked the door. Customer just walked in and I told her we r not open yet. I tried to unlock the door true the window and couldn’t reach but kept trying. The customer wouldn’t leave and took her card and tryed to open the door like that but I didn’t ask her to do that. She should have left the store until I let her back in but she didn’t. Now she requests money from me for helping me and she said that she would call the cops. Can she do that? Or is that trespassing?