Mouthy model Janice Dickinson was seen working her particular charm on the valet at the Montage Beverly Hills Friday. A spy told us, “She told the valet that she really wanted the Mercedes that pulled up before her car … but said, ‘I have to pay off my bills first.’ ” In her gym clothes, she bragged, “She had worked out with Maria Shriver as she lit a cigarette.” And before screeching off in her Jeep, she yelled at the valet, “I love you, Nick.”