A few examples you could use to get out of a traffic ticket. 

"I'm dyslexic... I thought I was doing 27 not 72"

"I'm on my way to the donut shop.  Do you want me to get you something"

"I just ordered a Domino's pizza and I'm trying to beat the driver to my house"

"I had an erection and was trying to make it home to my wife before it went down"