Re: Keys & keyless entry questions...
Keyless remote and key pad are seperate units. Since it was a police vehicle in may not have keyless remote. Most of the Fords.... Turn key from off to on 8 times within 10 seconds, ending in the on position. Locks should cycle, press any button on first remote, locks cycle, press any button on nex remote, locks cycle, etc, etc. for up to 4 remotes. Turn switch off, locks cycle, programming is complete.
When you cycle the key (8 times in 10 seconds ending in on position,) and the locks don't cycle... then you don't have keyless entry
One key should operate all locks. Most likely the ignition lock has been replaced. A locksmith can generate a key for you and also set you up so one key fits all again, but they will probably need to either, rekey your ign. lock or replace it