A man who required a spinal fusion after one car collision and a spinal stimulator after another has settled his lawsuit against the drivers for $2.5 million.Plaintiff Juan Rodriguez sued Alma Pienkowski and John Zook in Cook County Circuit Court in 2014, alleging the two were negligent in rear-ending his vehicle in separate incidents.Rodriguez’s lawsuit contends the two collisions caused him to suffer indivisible injuries, and that a jury should determine which collision contributed to his injuries — as well …