In this DWI case, the officer had reasonable suspicion to stop the defendant’s vehicle. The officer observed the defendant’s vehicle swerve right, cross the line marking the outside of his lane of travel and almost strike the curb. The court found that this evidence, along with “the pedestrian traffic along the sidewalks and in the roadway, the unusual hour defendant was driving, and his proximity to bars and nightclubs, supports the trial court’s conclusion that [the] Officer . . . had reasonable suspicion to believe defendant was driving while impaired.”