Will rims off a camaro fit ford crown vic?

No, Camaro rims will almost certainly not fit a Ford Crown Victoria. The bolt patterns (number of lug nuts and their spacing) are different, and the wheel hub bore (the center hole) will likely also be a different size. Even if you could somehow get the bolt pattern to match (requiring dangerous and unreliable modification), the offset (how far the wheel mounts in/out from the hub) is almost certainly different and could cause clearance issues with the suspension and body. Trying to force mismatched rims onto a car is unsafe and can lead to serious accidents.