After graduating from college, Ferrioli was hired by the United States Department of Veteran's Affairs. In 1986, Ferrioli founded Community Relation Associates, Inc. to advocate for natural resource producers in the state of Oregon. He is also the co-founder of Oregon Lands Coalition.
Throughout his career, Ferrioli has been actively involved in various degrees of public service. His first elected position was on the Creswell, Oregon City Council, where he served as the chairman of the budget and police committees. Soon after, he was elected President of the County[which?] Chamber of Commerce. He also served on the Economic Improvement Commission and the Community Substance Abuse Consortium Board of Directors.
In February 2011, he apologized after making a controversial statement that Greece is a "haven for morons", in response to a letter from a singer from South Africa living in Greece, asking him to oppose a bill that would remove wolves from Oregon's endangered species list.