So after seeing the red triangle and oil can, I had to ride a half mile to get off the road. Right now I have the airbox off, tightened things up (especially the left banjo bolt on oil feed line), replacing air filter and oil pressure sensor while I am there, and cleaning up all the oil. This may be to just distract myself from thinking about a possible toasted engine.
Question is, how do I find out out if there are major problems? Put it together and ride it, listening for tell-tale noises?
btw, Thanks MGrego for finding replacement oil pressure sensor (Duralast PS 571 from Autozone)