Story highlights Christie was returning on train to New York from D.C.

Loud cell phone talking led to complaints from riders

Washington (CNN) Chris Christie was asked to leave Amtrak's quiet car Sunday morning after passengers complained to a conductor about the New Jersey governor yelling at his security detail and into his cell phone, according to a rider.

But a woman who sat across from Christie said the incident was no big deal, and that the once the governor learned he was in the quiet car, he left quickly and courteously.

Christie, a Republican presidential candidate, was on the 9:55 a.m. train back to New Jersey from Washington, D.C., after an appearance on CBS' "Face the Nation."

Photos of Christie taken by a passenger

He walked onto the train with a McDonald's strawberry smoothie, already chewing out someone who was with him, possibly a security officer, about a mix-up in seating arrangements, according to Alexander Mann, a passenger on the same train who detailed the Christie incident to CNN in an email and in photos.

Mann wrote that just before the train departed, Christie boarded behind "two men who appeared to be Secret Service agents" -- though that's unlikely, since Christie doesn't yet have Secret Service detail; his staff said he traveled Sunday with one New Jersey state trooper -- and was "yelling at them about some sort of mixup with the seating arrangements and how they had let it happen."

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