CLARK -- One person changed a sign on an exit at the Garden State Parkway for Clark Westfield to read "Clark Griswold" on Thursday morning.
Griswold is the father's character played by Chevy Chase in 'Christmas Vacation.'
Sgt. Williams of NJ State Police confirms photos of the sign posted on were real.
The taped-on Griswold sign at the highway's exit 135 later was removed by the Turnpike Authority.