A blonde woman was speeding down the road in her little red

 sports car. She was pulled over by a blonde woman police officer.
 
The blonde policewoman asked to see the blonde driver's license.
 
The driver dug through her purse and was getting progressively more
agitated. 'What does it look like?', the blonde driver finally asked.
The blonde policewoman replied, 'It's square and it has your picture
on it.' The blonde driver finally found a square mirror in her purse,
looked at it and handed it to the policewoman. 'Here it is,' the
blonde driver said.
 
The blonde policewoman looked at the mirror, handed it back saying,
'OK, you can go. I didn't realize you were a cop.'