If there's any escape hatch from the limits of the system, they'll be abused.
> Enter warrant ID:
>> We have to rescue a child from a kidnapper! Enter 'amber alert' as the warrant ID to bypass the warrant check!
Suddenly, many more searches (that fail to find a given child) are happening.
My point is that you misunderstood the comment above you, not that people never lie about the appropriate label for what they're doing.