California law requires you to stop and exchange information for any accident, however, if the "accident" does not result in injury to any person or more than $500 damage to any vehicle, you are not required to report it to the DMV. Obviously you cannot exchange information with the other driver if he/she refuses to pull over. I would say you have nothing to worry about.
Answered on Jul 06th, 2012 at 12:52 AM