Conclusion:
No. A divided Court held that the law did not violate the Constitution. After detailing the history and importance of the Establishment Clause, Justice Black argued that services like bussing and police and fire protection for parochial schools are "separate and so indisputably marked off from the religious function" that for the state to provide them would not violate the First Amendment. The law did not pay money to parochial schools, nor did it support them directly in anyway. It was simply a law enacted as a "general program" to assist parents of all religions with getting their children to school.
