It has been blackletter law since Patsy v. Fla. Bd. of Regents, 457 U.S. 496 (1982), and well before, that exhaustion of administrative remedies, like exhaustion of judicial remedies (see Monroe v. Pape, 365 U.S. 473 (1961)), is not required as a condition precedent to filing a § 1983 claim in federal and state court. […]