Cottle was arrested on Sept. 1 along with her husband during a traffic stop on Los Angeles' Sunset Strip. The 35-year-old pleaded not guilty to the misdemeanor charge in November.
Prosecutors declined to charge T.I., citing a federal judge's decision to send him to prison for 11 months for violating his probation on weapons charges and because only four ecstasy pills were found on the Grammy Award winner.
