New Jersey Gov. Chris Christie answers a question as he...

New Jersey Gov. Chris Christie answers a question as he addresses a gathering at the Chabad House at Rutgers University in New Brunswick, N.J., Aug. 25, 2015. Credit: AP

Gov. Chris Christie says he's sorry for making too much noise on an Amtrak quiet car.

Christie spokeswoman Samantha Smith says he accidentally took a seat in the quiet car while traveling from Washington on Sunday morning.

Smith says after breaking "the cardinal rule of the quiet car," Christie promptly left for the cafe car. She offered sincere apologies to any patrons who were offended.

Amtrak conductors generally urge passengers to maintain a "library-like atmosphere" in the quiet car. It's not uncommon for conductors to ask noisier passengers to change cars.

The Republican presidential hopeful had appeared on CBS's "Face the Nation" earlier in the morning.

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LI hospitals took $4.8B in property value off tax rolls ... Police: Human remains found in Nassau park ... LI to pay greater portion of SNAP food benefits

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