If your Christmas travels put you on the Parkway northbound in the Clark area yesterday, chances are you did a double take around 135.

Erin O'Callahan, Facebook

Someone changed the the Parkway sign for exit 135 "Clark / Westfield" to "Clark Griswold" of National Lampoon's Christmas Vacation fame.

NJ State Police confirm this picture floating around the Internet was not digitally doctored and real. The Turnpike Authority has since taken it down.

Erin O'Callahan snapped the pic during her commute, writing "this is the best thing I've ever seen in my life."

Did you see the sign on the Parkway? Tell us your thoughts in the comment section below.