Margot Kagan said she was using one of the fax machines inside the store on Wednesday when she noticed the woman using the machine next to her was not wearing a face mask.
She said when she asked the other woman to wear her mask, the woman cursed at her.
"When she started cursing me out I said, 'Well,you're endangering everyone,'" recalled Kagan. "So that's when she took it upon herself to leave her little cube area and come in mine, but she's, face-to-face with me, without the mask on properly."
Kagan recently had a liver transplant and uses a cane as she recovers.
"I held up my cane so she couldn't go any more forward. I didn't touch her with it. At some point, she grabbed the cane and threw me and it on the floor," Kagan said.
Security cameras captured the assault:
Kagan said she broke her knee, which required a steel plate to be put in and has been told by doctors that she won't be able to put weight on her leg for seven to 10 weeks.
Police are still searching for the other woman.
Kagan said she hopes they find her.
"I hope karma gets her. You know I hope the police find her, because I'm pressing charges. I hope that she's terrified by the notion of the police coming to her job and arresting her. I'm sorry, I have no sympathy for her whatsoever," Kagan said.
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