It is easy to email deejays, just look up the name of the station and even if the wrong deejay gets the email, they should forward it to her.
If you know when she was on (if you don't know her name) then she'll get the email.
I have had really good luck getting a hold of deejays when I wanted to know what a band was I heard the day before, etc
Your email would be way way more important than that!!