The bar pilot who directed the Cosco Busan container ship into a Bay Bridge tower in 2007, causing a 53,000-gallon oil spill that killed wildlife and closed beaches, was scheduled to report to prison today. The 61-year-old, however, will spend an extra month at his Petaluma home nursing a foot-surgery related injury, court documents show. Cota was sentenced in July to 10 months in prison.