Without a definitive yes/no, I will say that a large portion of police in the U.S. are localized; city, county, borough, municipality, sheriff, even state: and as such, a large part of their funding is also often cut from a corresponding localized budget, so their "issued gear" could/would differ from unit to unit, sea to shining sea. Which hancuffs to buy, what flashlight, sidearm, vehicle(s), (what will the uniform and badge look like), is often figured into the local tax budget of the area a said police force serves and protects, and I could defintely imagine with thousands of police forces across the nation that some have managed to fit into their budget an issued duty knife....
Certainly not out of the realm of reality when you see some of the things that some police forces do spend money on...