Unfortunately, Muslims probably fall into the category of a “protected class”, or soon will be. I.E. a segment of the population outside the European/Christian population, which is extended special protections and privileges due to past wrongs, alleged or real.
What if the American Communist Party came forward and wanted to name a highway after Karl Marx? How about some black group wanting to name a highway after “Reverend” Jessie Jackson or “Reverend” Al Sharpton?
I really expect the ACLU will challenge this decision in the courts, as they serve as self-appointed advocates for all types of odious groups, and strike down this decision.