In the final scene when Cannon talks to the bank manager, the bank manager's hair changes in a series of four shots. In close shots, his hair is neatly combed, but in the intervening long shots his hair is unkempt.
When Sgt. Rissmiller puts his gun away, he tucks it into his waistband. A plainclothes police sergeant would certainly use a holster of some kind.
Cannon calls Sergeant Rissmiller from his car phone (44 min) and mispronounces his name as "rice-miller", when Rissmiller had introduced himself as "rizz-miller" at Susan's apartment.