Police told 10News they attempted to pull over the driver of a black Chevrolet truck at Grand Avenue and Mission Boulevard shortly before 2 a.m. on suspicion of DUI.However, before officers could speak to the driver, he bailed from his car and ran to an area near Reed Avenue, towards the beach and into the ocean. A passenger stayed with the truck and reportedly provided officers with information about the driver.Lifeguards began a search for the man using a fire department helicopter above and lifeguards on paddle boards in the water, as well as trucks on the sand. The driver was seen wearing nothing more than jeans and a T-shirt, and with water temperatures only in the upper 50s, there were serious concerns about hypothermia. "We called the fire department helicopter. They came in with their night vision and searched the entire area. Searching conditions were excellent. We had very good visibility," said San Diego Lifeguard Lt. Andy Lerum. After the sun was out, lifeguards called in the Coast Guard to continue the search. "When the sun came up, it was the first opportunity to go out and take a look with actual light instead of that dark, so that's why you saw another effort by lifeguards and the Coast Guard this morning," said Lerum. Lifeguards, police and the Coast Guard called off their search around 9 a.m. after police were informed that the man called his family.According to police, family members reportedly told officers the man indicated he was OK but was not ready to turn himself in. Police said the man did not reveal where he was when talking to his family.