A little old lady was driving 30mph in a 50mph zone when a CHiPs pulled her over and said, You know your doing 30 in a 50 zone.

She said, That's what the sign back there says.
What sign,? says the officer.
The one with the little triangle with the 30 in it.
The copper thinks................ That's the State Highway route number, this is Highway 30
Oh, that's what it means, says the old lady.

Anyway the copper bends down and looks inside the car, all the women passengers have sheer white terror on their faces, bare-white knuckles clutching the seats, Are they alright ? says the officer.

Oh, they fine says the little old lady, We just came off Highway 240





From Australia, trying to figure out your speed zones, good show CHiPS, I was a kid at the time