Lev pulled his gun fast and pistol-whipped Norman on both sides of the face. Norman cried out. Lev held the Colt casually pointed in the direction of the thugs.
To her credit, Olga did not scream.
"You asshole," Lev said to Norman. "I killed Josef Vyalov––do you think I'm scared of a fucking accountant?"
Norman got up and scurried out of the room, holding a hand to his bleeding mouth.
Lev turned to the other men, still holding the pistol pointing in their general
direction, and said: "Anyone else who doesn't want to work for me can leave now, and no hard feelings."
No one moved.
"Good," said Lev. "Because I was lying about no hard feelings." He pointed at Ilya. "You come with me and Mrs. Peshkov. You can drive. The rest of you, unload the van."
Ilya drove them downtown in the blue Hudson.
(Ken Follett, Fall of Giants)
What does the clause mean?
(Even if there is some meaning about ‘lie about’, they make no sense with ‘no hard feelings’ to me.)