Venus was chasing Riggs and Alex relentlessly. The lights and crowded highways gradually lessened as Riggs led her outside of the city and to an unknown rural area of country x. Regardless, even though she doesn't know the whole map of the country, Venus only cared about giving these two a lesson.
Moreover, the less the crowd is, the easier for her to caught up with them. Riggs knew about that fact but still chose to do that as he was reminded that Seraphina ordered them to stay low key. Fortunately, Alexander Han did something right by calling X and informed their dilemma.
Riggs only needed to lead Venus on -- far away from the city and face her head-on. After all, this wild cat won't stop and would certainly follow them at the ends of the world; probably even to hell.