In Sandy's wake, gasoline keeps dwindling as temperatures drop NEW YORK - Temperatures plummeted and tension soared in the Northeast as gasoline supplies continued to dwindle despite furious efforts to bring in fuel. Sandy's death toll reached 100, and New York called off its famous marathon, despite the mayor's protestations that it should have taken place as scheduled, as a symbol of resolve. Government officials moved aggressively to combat the fuel shortage, a crucial hurdle to recovery and a threat to commuters, generators, trash trucks, taxis and rescue workers alike. President Obama on Friday ordered the Energy Department to loan diesel oil from government reserves in Connecticut to emergency responders. Secretary of Homeland Security Janet Napolitano took the rare step of waiving 92-year-old rules for the delivery of petroleum products to Northeast ports, expediting shipments from the Gulf of Mexico. In New York, Gov. Andrew M. Cuomo waived tax and registration requirements on fuel distribution - and insisted that there was "no reason to panic." It was evident that millions did not agree. Lines for fuel stretched for miles and for hours. Some drivers ran out of gas before they could reach the pumps. In Queens, a 35-year-old man was arrested after he lost patience, cut in line and pulled a .25-caliber pistol on motorists who complained. Airlines began taking the costly step of carrying extra fuel on planes. Authorities said gas availability might not return to normal for several more days. "All this storm stuff is just driving me crazy," said bartender Lindsay Benjamin, who walked two hours from her home in Queens to work in Manhattan. The vibe is very nervous. Five days after Sandy delivered a staggering blow to the most populous region in the United States and became one of the nation's costliest natural disasters, there were some significant signs of recovery. Most symbolically, the lights started coming on in pockets of Lower Manhattan, home to vital financial institutions and dense, lively neighborhoods. Crowds of residents erupted in cheers as power began coming back to about 100,000 customers in the East Village and Chelsea neighborhoods. Repairs were expected to continue throughout the southern tip of Manhattan this weekend. The Holland Tunnel, a crucial conduit under the Hudson River connecting Manhattan with the west, also opened to buses Friday. And New Jersey Gov. Chris Christie reopened the 12 casinos in Atlantic City, the beachfront landmark that was just a few miles away from where the center of the storm struck land. Still, nearly 4 million homes and business were still without power. Some far-flung areas, even some of New York's immediate suburbs, could face another week of darkness and cold. Napolitano, visiting the devastated borough of Staten Island, said the area directly affected by the storm was roughly the size of Europe, and called the electricity crisis the "fundamental issue" facing the region. Gasoline tankers began trickling into the New York Harbor on Friday, but in New York, New Jersey and Connecticut, searching for gas became a way of life. Residents were glued to radio stations carrying live updates of gas station deliveries. Drivers running on fumes were forced to gamble on which station's line to join. "This has been a madhouse," said Walt Must, 56, a lawyer from Toms River, N.J., as he waited for gas near the Garden State Parkway. Ahead of him, 32-year-old Rob Vargas was waiting in his red Montero, using Facebook to tell friends the station had gas. Vargas said he had weathered severe hurricanes in his native Nicaragua, and thought he was prepared for Sandy. Now, he said, there were 15 family members sleeping in his two-bedroom apartment in Lakewood, N.J. "It changes everything - your point of view, everything," he said.