Maybe she flashed him???
Sorry just having fun with you.
Honestly, there are some officer that hardly ever right tickets. They prefer to preach to the violator and give the break and call it a learning experience. Other officer will cite everything thinking that compliance will be gained from fear of the cost.
I personally believe it is a combination of both. The minor stuff I let go with a warning but if you go past the point of just pushing it you'll get a ticket and those people know that they deserve it. It sounds like she just got lucky and got stopped by one of the officers that doesn't write many citations.
Excuse me Officer, I have a stupid Question. "No problem, I've got a stupid answer for you!"