That can be fixed by going into the ELS configuration file (ELS.ini). Once you open ELS.ini, scroll to the "[GENERAL]" subheading. You will see "ElsMaxRangePl", which controls the distance of your car's lights, and "ElsMaxRangeAi", which deals with the AI's police cars. Change the numbers on the right of the equal sign to a greater value. For example, My ElsMaxRangePl is set to 5000. If that wasn't good enough for me, I'd try 8000 or 10000.