Coach Jason Garrett de-activated Whitehead after the receiver and return specialist was late to meetings last Saturday. He was fined for the absence.
"We preach (accountability) around here and we have to do everything right," Whitehead said. "I take responsibility for that. I talked to my guys and I apologized, and I won't let it happen again."
The Cowboys replaced Whitehead on punt returns with Cole Beasley and with Lance Dunbar on kickoff returns. There is no guarantee Whitehead will have a spot on the game day roster going forward, especially with running back Darren McFadden added to the 53-man roster for the first time this season. McFadden, who was on the non-football injury list because of a broken elbow, could be used in a kickoff return role.
Whitehead said he thought about purchasing his own plane ticket to fly to New Jersey to be with his team but opted against hit. He watched the game on television.
"It was definitely tough for me and just watching the game, it hurt," Whitehead said.