This is inspired by another question: Is Elon Musk's child name valid in California?
The accepted answer quotes the a handbook from California Department of Public Health, Vital Records, p. 112:
The form must be completed using the 26 alphabetical characters of the English language with appropriate punctuation, if necessary.
No pictographs (), ideograms (), diacritical marks (è, ñ, ē, ç), or extraneous entries are allowed.
In comments it is mentioned that this causes problems for the large Spanish population, among others.
So, I wonder, has anybody taken this to court? If so, what was the result?
The title says "anybody else" because I am not interested in Elon Musk, but in cases that can form precedent for his possible lawsuit.