Are there any cases that challenge section 3013 of the Criminal Code in the context of civil rights issues?

The demonstrators also challenge section 3013 on equal protection grounds. They present two arguments. The first is that the statute fosters an impermissible and arbitrary distinction between those misdemeanants who are required to appear in court, who thereby become subject to the required section 3013 payment, and those who are initially permitted to post forfeitable collateral, who escape its purview. They did not raise this argument in the trial court, however, and we will not reach it on appeal. See United States v. Moody, 778 F.2d 1380, 1383 (9th Cir.1985).