He has been criticized for his handling of Hurricane Maria, which devastate Puerto Rico a year ago, and more recently for disputing the official death toll of 3,000.
The Hornets and National Basketball Association merchandising partner Fanatics have also designed a special T-shirt featuring the Hornets logo in the middle of the states of North and SC surrounded by the words "Carolina Strong".
Flash floods, landslide warnings and "prolonged significant river flooding" throughout the region will continue for the next few days, the National Weather Service (NWS) said.
As many as 255 primary roads remained closed due to flooding Tuesday, North Carolina's transportation chief James H. Trogdon said.
Rescuers freed six dogs that were locked up in an outdoor cage in North Carolina during Hurricane Florence, as the water level was rapidly rising.
The dead include a 1-year-old boy who was swept away after his mother drove into floodwaters and lost her grip on him.
Florence dumped close to 36 inches of rain, according to totals measured in Elizabethtown, North Carolina.
Widespread flooding has already reached roofs, turned highways into rivers and left thousands to be saved by rescue workers.
"It is ridiculous that we don't have enough fuel supplies back in this area", Stephanie Schauer, 39, a contractor, said as she waited her turn at the gas pump. Or northbound motorists from Georgia could get off I-95 and take either I-26 or I-20 to Columbia and then catch I-77 to Charlotte, the agency said.
Virginia State Police spokeswoman Sgt. Keeli Hill says first responders found the man's pickup truck upside down and submerged in water that had flooded Route 607 in Louisa early Tuesday morning.
The Cape Fear River at Chinquapin was up to 7.38 metres on Sunday morning, 22cm into a new record, and again, a dramatic 3.42m above flood level.
Over 450,000 homes and businesses in North and SC were still without power on Monday evening, down from a peak of almost 1 million outages.
The storm made landfall at Wrightsville Beach, NC, around 7:40 a.m. ET Friday as a Category 1 hurricane. Six people died in SC, including four in auto accidents and two from carbon monoxide from a portable generator.