I would recommend staying in Laredo and then driving to Chapala, about a ten to eleven hour drive. If you must stop, stay in San Luis Potosi, not Aguascalientes. I have workers from Monterrey, San Luis and Aguascalientes and it appears San Luis is a little safer but they do not recommend going out at night. I also think staying in el centro de San Luis is a good choice. It is highly advised to use the autopistas, tollways, around each major city. Have a safe trip.We plan to stay on main hwy. and drive in daylight. 1. Recommendations on cheap but clean places to stay in Monterrey and then in San Luis Potosi? 2. Anything we should be aware of along the way, road const. detours, etc.