A highway patrolman pulled alongside a speeding car
on the freeway.
Glancing at the car, he was astounded to see that
the blonde behind the wheel was knitting!
Realizing that she was oblivious to his flashing
lights and siren, the trooper cranked down his window,
turned on his bullhorn and yelled, "PULL OVER!"
"NO!" the blonde yelled back, "IT'S A SCARF!"

This one reminds me of the old one:

A guy is pulled over on the freeway. He asked the cop what he did wrong, and the cop replied "You were driving recklessly and weaving" To which the guy replied "Weaving? Hell, I can't even knit!"