take it to the dealer, have them clean it up and document this fact, so if in the near future some of the engine bay electronic modules gives, you will have something to fall back onto...
It could be a splash, then nothing much to worry about, or it could be a coolant hose knocked off place... you don't need this kind of headache from a dealer - their technicians are supposed to be factory trained, blah blah, blah...

just make sure it is documented