She has a mobility disability.

She was, on the facts of that autumn, unable to reliably get from a maths classroom to a cafeteria in the time allowed, and had missed meals.

That is not a hardship.

That is, in the language of the statute, a denial of access to a programme or activity, and it engages Section 504 of the Rehabilitation Act, and the school district has an affirmative legal obligation to address it on notice, and a parent can trigger the process with an email.

Not a lawyer.