Our judgment in 647 F.2d 72 (9th Cir. 1981) is vacated. The district court is affirmed and the case is remanded for further proceedings consistent with the opinion of the United States Supreme Court in United States v. Ricardo Valenzuela-Bernal, 458 U.S. 858, 102 S.Ct. 3440, 73 L.Ed.2d 1193.