(solved) How do I turn this thing off?

Mopar Madman is correct. It is a maintenance information light. It comes on @ 60, 120 etc. The only way to shut it off is with a scan tool to interface the ECM. This is to be done after you have all the emission components checked out to make sure they are working properly. Yes it is a money maker for the dealership. Sucks but there is no way around it that I am aware of.
~Michael