The Blonde Cop

A blonde in a convertible is speeding down the highway when she gets pulled over by a female police officer, who also turns out to be a blonde. 
She walks up to the convertible and asks to see the blonde's drivers license. 
Confused, the blonde asks, "What does a license look like?" Eager to help, the officer happily responds, "It's that thing in your purse with your face on it." 
The blonde begins searching through her purse and finally pulls out a mirror. She flips it open, sees her own reflection and figures that must be it. 
After handing it over to the officer, the officer carefully looks at it says, "Oh, I'm so sorry. If I knew you were a cop, I wouldn't have pulled you over!"