Fort Pierce, Fla. ? Thousands of residents desperate to return home after fleeing Hurricane Frances ignored Florida’s plea to stay put Tuesday, jamming highways, delaying emergency workers and causing tempers to flare in the sticky heat.

One man was so desperate for ice that he shot the lock off a freezer. Fights broke out in some places. Drivers waited for hours to fill up their gas tanks. More than 1,000 cars coiled around several blocks in Stuart as a distribution center watched over by National Guardsmen offered water, ice and ready-to-eat meals.

“Everyone’s hot, everyone’s sweating so much at night that nobody can sleep. Everyone’s tossing and turning. The kids keep crying. I can’t take no more of this. Nobody can take this,” said Maria Sanchez, 26, who waited more than 90 minutes with her four children to get supplies in Stuart, about 35 miles north of West Palm Beach.

While many began removing debris, clearing downed trees and mopping up the water in their homes, weary Floridians looked over their shoulder at another hurricane several days away in the Atlantic. Ivan could become the third hurricane to hit the state this year, though it was too soon to determine the storm’s exact path. The storm made a direct hit on Grenada on Tuesday, thrashing concrete homes into piles of rubble and uprooting trees and utility poles.

“It almost seems like we’ve got a ‘kick me’ sign on the state here,” said Max Mayfield, director of the National Hurricane Center in Miami.

As many Floridians went home for the first time since Frances battered the state Sunday, traffic on parts of Interstate 95, the major highway along the Atlantic coast, was double the usual levels in some areas. Federal Emergency Management Agency workers trying to reach Martin County got stuck in traffic.

About 3 million Floridians were told it could take up to a week to restore power to all of them, with the longest wait for Daytona Beach. That was bad news with high humidity and temperatures hovering around 90 degrees.

Vivian Doe takes a break while helping at the water and ice distribution center at Lawnwood Stadium in Fort Pierce, Fla. Hurricane Frances victims were frustrated Tuesday with the lack of supplies.

“None of the stores have anything that you need. There is no bread to be found, no ice or water. I’m lucky I got gas this morning,” Serafina Ferreira said at a relief site in West Palm Beach, where lines stretched for miles.

St. Lucie County administrator Doug Anderson said: “We had some fights break out already today. We are asking the public to please be patient and neighborly. We are all in this together.”

Frances hit a wide swath of Florida’s east coast early Sunday with winds of 105 mph and more than 13 inches of rain, ripping off roofs and flooding streets up to 4 feet deep. It weakened into a tropical storm before sweeping into the Panhandle on Labor Day, causing little damage there.