Would the cop be talking to her politely if he was not recording the incident?
I was stopped by traffic cops many times , and I found them always polite. First thing I heard "ขออนุ*าติครับ" something like asking for permission. Then police told me what I did wrong such as I drove in the wrong lane, speed, etc., time for me to be very polite "I am sorry, my mistake I didn't know it's the bus lane, I am from Dtang Jang Wad (other province), I am really sorry". I've never been asked for my driver license after I apologized the polices, they just warned me to be more careful and let me go . Not only females are treated politely, but males too. Anyway, there are always dark sides that we don't know, I don't believe all polices are always polite and I hope NOT to meet any of those impolite ones or the ones with bad mood.