Bona v. Gonzalez, __ F.3d __, 2005 WL 2401874 (9th Cir. Sept. 30, 2005) (DHS regulation precluding "arriving aliens" from seeking adjustment of status in removal proceedings in ultra vires to the INA).
http://caselaw.lp.findlaw.com/data2/circs/9th/0371596p.pdf