Matter of Valdovinos, 18 I&N Dec. 343, 344 (BIA 1982) (incarceration in a minimal security area with work furlough counts towards the 180 days for the statutory bar to showing Good Moral Character, under INA 101(f)(7), 8 U.S.C. 1101(f)(7)). Thanks to Kathy Brady.
http://www.justice.gov/eoir/vll/intdec/vol18/2929.pdf