Harold Clark, 81, a San Diego businessman who survived four days locked in a car trunk after being kidnaped, has died in his Golden Hill home. Clark disappeared in March, 1983. After four days, a passer-by spotted his car parked on a street and police found Clark, nude and dehydrated in the trunk. Clark said he was beaten during the ordeal and driven around in the car trunk. A man and a woman were tried and sentenced in the case. Clark, who died Friday, owned several now-closed restaurants--including the Saratoga Grill, Monte Carlo Cafe and South Seas Restaurant.