A family member is a city LEO. His police force have Ford Interceptors (Taurus police packages) with the non turbo 3.5 V6 and AWD. Even though the Crown Victoria police package is only RWD, although a small V8....he prefers the older CV's, due to comfort, especially with a duty belt on...which is always.
Interesting that your police Fleet Manager bought a F150 with the 5 liter V8. Another buddy bought a new 2013 F150 and chose the 5 liter V8, over the 3.5 liter turbo. He's a bit of a hot rodder (regular drag racer at the local drag strip) and felt the 5 liter would be less trouble than the turbo V6. He also prefers the V8 exhaust note.
He occasionally tows a tandem axle car carrier...with race car on the trailer... with the F 150 and finds the 5 liter, does the job with no difficulty.