The family made a decision to put up a sign at the bottom of the ladder that reads: "Clark G is part of our Christmas display please do not call 911".
As KVUE reported, Chris Heerlein and his family purchased the dummy online and spent hours searching thrift stores to find clothing to match those of what Griswold wore in the film.
The Heerlein family's Christmas decorations took a page from the movie "National Lampoon's Christmas Vacation", in which one character, Clark Griswold, clings to the gutter of the second story of his home after slipping on the roof while putting up lights.
The family said the display looked so realistic that somebody actually rushed over to help.
A passerby had the scare of his life when he thought a fake Clark Griswold Christmas display was a real man in danger.
The family said they put the display up for a contest.
The family now has a sign attached to the bottom of the ladder saying the dummy is part of their holiday display and not to call emergency officials.
According to police officers, Mr Norwood's call was not the first one police had received about the Heerlein house.
Ms Wheless said: "He was doing everything he could to get the ladder!"
Passerby Alfred Norwood Jr was recorded on the family's surveillance cameras trying to rescue the dummy last week. Alfred told KVUE. "Then I thought, 'Oh my God, I hope he's not dead, lemme call 9-1-1'".
The family told the TV station they felt so bad about the man's reaction that they'd like to thank him for being so concerned.