Last week on my way back from the beach, my service engine light came on again. Hmm. Quirks thy Nissan a'plenty. Such is life. Beautiful car regardless. Yesterday I took it to the dealer and they ran a diagnostic test on it. 16 cycles ago the light came on, and the Diag test found "False Code for Front O2 Sensor-Code cleared, problem solved"
As for the rotors. Definitely warped, cost to shave $68.62. Dealership was helpful, and they stayed past closing to finish my car for me. Car drives like a top now.