So, a cop uses confidential information to stalk her - to her HOME - and then leaves a note on her car - and SHE is a skank?
How would you feel if you got a ticket for speeding, then were to get the same note, on the windshield of your car, parked outside of YOUR home? No intimidation there, huh? You'd better go out, and give him whatever he wants ... because he's a Policeman, and tracked you back to where you live. Where do you draw the line? Honestly, what else could she have done, without fear of reprisal? Today, it's a note; tomorrow?
Politely declined, logded a complaint with his superiors and/or local authorities before running off to US District Court to sue?
You could have stopped right there, because you are right. It is a very stupid thing to do.
Problem is this guy didn't dream this little scheme up all by his lonesome. The same 'cop courtship' has been employed by countless cops. Sometime it works, sometimes it don't. Only difference is some wont take a polite 'WTF are you thinking' for an answer and turn into Pepe le Pew .