Twin City Nissan

Went in leaking oil...came out missing. I took my Nissan 350Z in for service because it was leaking oil profusely. I took my car in on 2/23/15 and got it back on 3/3/15. Yes. 10 days. Now af I took my Nissan 350Z in for service because it was leaking oil profusely. I took my car in on 2/23/15 and got it back on 3/3/15. Yes. 10 days. Now after driving my vehicle a few miles I noticed it was missing while idling. I take it back in and was told that it could not have happened while they were repairing all the leaking gaskets; that perhaps a rat had eaten the knock sensor harness, which they could not repair. I was told that if it turned out to be the sensor, they could repair that at no cost, but it would take 5 business days to receive the parts from a Dallas warehouse. Unbelievable that a dealer would not have parts on stock but then again that is why I am writing about my disappointing experience with this dealership. I would recommend going elsewhere before using this service department. That being said, the service person was professional and courteous. I think I would prefer just having good service over kindness. More