A source told TMZ that the former Nickelodeon star spent her days at the 5-star hotel being rude to the staff -- even telling a girl she was "too ugly" to check her in -- and smoking marijuana. Bynes reportedly tried using spray chemicals to hide the smell, but was unsuccessful.
The 27-year-old actress was scheduled to check out Thursday at noon, but was reportedly booted hours earlier for her bad behavior.
The "She's The Man" star reportedly denied the accusations to TMZ and told them she had left the hotel voluntarily. According to the gossip site, she was last seen getting on a taxi headed to LaGuardia Airport bound for Los Angeles.
Bynes has not yet tweeted about the incident.