The 27-year-old "Love Wrecked" actress reportedly lashed out at Bobby Cohen and had to be calmed down by security at a resort, reported Contactmusic.
"She was stumbling and reeked of alcohol. She was carrying a huge handbag and something that looked like a pet carrier but I was hoping there wasn't an animal inside because of the way she was holding it," a source said.
"She started yelling at him and screamed 'he can't take my picture'."
Bynes was recently been evicted from her New York City apartment and was charged with reckless endangerment and taken for a psychiatric evaluation.