University of Northern Iowa police spokesman Dave Zariffs says officers responded to a door alarm at Mojo's Pizza House in Cedar Falls about 2 a.m. on Monday. When they arrived they found Rinehart pulling on a locked door.
A police report says Rinehart, who played at Northern Iowa from 2004-07, appeared to be intoxicated. Rinehart refused a breath test and was arrested.
Rinehart was taken to the Black Hawk County jail and released by court order.
Rinehart is a native of Boone, Iowa. He made four starts for the Redskins last season before breaking his right leg.
The team issued a statement saying it was "aware of this incident" but had no further comment.