At work we have a 2015 PIU with street appearance package (shifter-less console), and it has an OEM Class III hitch. The existence of this vehicle proves what I want to do can be done. I just don't know if the bolt holes are threaded deep within the body and I can't see it? Or if the bolts thread a collar of softer metal when inserted? Or if I need to get the body tapped out before installation? Instead I'm just being told to by a Curt hitch.
This is a 2015 Police Interceptor Utility, with OEM Class III hitch. I can provide the VIN if someone is positive they can decode it.