I rolled up to work the other day and all seemed fine. As I got out of the car (02 S. 82k miles) I could strongly smell burning oil. As I walked around the car I noticed smoke rolling out of the passenger side vent and a small amount from the right rear wheel well for about 20 seconds. Oil level reads the same, full. No drips or leaks. I drove it home cautiously with no problem or repeat. What the heck?