In 2007, Florida governor Charlie Crist appointed her to the state's Public Service Commission.

[8] A member of the Republican Party throughout her legislative career, Argenziano switched to become an independent in 2011.

[9][10] In 2001, Argenziano delivered 25 lbs of gift-wrapped cow manure to Jodi Chase, a lobbyist for Associated Industries of Florida.

Chase apparently entered Argenziano's office uninvited to watch a floor debate around the bill, angering the legislator.

The manure was later delivered to Chase at a lobbyist area in the Florida State Capitol Building, drawing a rebuke from the AIF and then-House Speaker Tom Feeney, but gaining Argenziano many signatures from colleagues in a petition of support.