HUDSON, New York — Boy, what a dummy!

A man who left “an extremely realistic life-sized mannequin” of an elderly woman in the front seat of his car on a bitterly cold night, ended up with a shattered window and a lecture from cops after concerned residents called to report a person who appeared to have frozen to death.

Several “upset calls” came into Hudson police early Friday reporting what appeared to be a dead woman in a Subaru near city hall.

When officers arrived they saw the woman seated in the front passenger seat wearing an oxygen mask. She wasn’t moving and did not respond. As it was just 8 degrees Fahrenheit and the car was covered in snow, Sgt. Randy Clark decided to break the rear passenger window to get inside.

What he found was a very life-like CPR training mannequin.

Eventually, the car’s furious owner — a local resident who works for a company that manufactures medical training aides. Cops said the mannequin was ”extremely detailed to include actual clothing, glasses, teeth, shoes, skin blemishes, etc.”

The man said he regularly transports the device in his car strapped in with a seat belt in the front seat and was “incredulous that we took action in this matter,” said Hudson Police Chief Edward Moore.

“He apparently was quite vocal and vulgar to my Sergeant,” Moore said. “Just to clear the record, all citizens of Hudson should be put on notice that if you park your locked vehicle on the street on a sub-zero night with a life size realistic mannequin seated in, we will break your window.”

Despite discovering it was a mannequin, Sgt. Clark said he would do the same over again, regardless of the man’s response.

“He just didn’t understand the public alarm that caused, especially in the severe weather we’ve had,” he said.

No charges were filed.