Rosa mentally shrugs. The bard might or might not have overheard. He might really have something to do, or he could be leaving to report this to any number of organizations - the city's lords, the thieves' guild, or even the renegades she sought. But if he really was some kind of agent, he was good enough to spy on her, lie to her, and give a cover story all without her being able to tell. Or, it could all be coincidence. Either way, nothing would be gained from pursuit at this time.
After pausing to think for a moment, she heads off in the direction of a tavern. Time to seek information.