Strange Accommodations claim

UPDATE: The disability office has no record of accommodations.

I gave a short answer reading quiz in class today and a student claimed that she had accommodations and tried to leave class during the quiz. I am unclear on the exact accommodations she said she has, but it sounded like it had to do with reading comprehension and being exempt from recalling what she has read. I have not received anything from the disability office yet and informed her that accommodations cannot be applied retroactively. I give several reading quizzes throughout the semester because students will not complete the reading homework otherwise (composition course with article readings). I have never heard of an accommodation in which a student is exempt from an assessment. (I had accommodations in graduate school for a vision impairment but was never exempt from learning the material.) I am happy to provide reasonable accommodations and submit assessments to the testing center for her if that's what she's been granted. I suspect that she just talked to someone in the testing center and did not go through the proper channels to receive accommodations. Has anyone had a student receive an accommodation in which they’re exempt from recalling the material?