"I'm hard-core," Martin said. He said he does not do well around others, and fears he would lose his temper in a shelter. "That's why you always see me alone."
Miller understands. He is Camden's outreach manager for the Volunteers of America, which builds a relationship with the homeless and provides services.
"They are, in a sense, the most vulnerable," Miller said. He has seen some of those living outside suffer frostbite so bad that they lose fingers, toes, or even a limb.
"Mentally, they feel they can deal with it, but they are not equipped," he said, explaining that hypothermia or frostbite could set in while they are sleeping.
"If you change your mind, call me, and I promise there will be a warm bed waiting for you," Miller told Martin as they parted.
Blocks away, Miller gave supplies to Sharon Czyzewski, 34, who is living in a tent with her husband near the I-676 overpass.
"I'm freezing to death," Czyzewski said, her hands shaking as she accepted coffee for her husband and a tarp to cover the tent. She spoke to relatives and accepted their offer to pick her up so she could sleep inside Tuesday.
Each person welcomed Miller and another outreach worker as they spread the word that shelter space was available.
Abraham Brown, 55, who grew up in Moorestown, attended a state college, and traveled the country, greeted Miller with a smile. Brown said he had made bad decisions that left him living outside.
"The VOA has been very helpful. They've really been showing some brotherly love and sisterly love," Brown said.
Brown said he was not worried about the cold. He accepted two Sterno heaters to warm his tent in a clearing off an I-676 exit ramp, and asked for a third. Several tent dwellers asked for small propane tanks for camping heaters they said would burn through the night.
Ramon Manoz, 57, has a water view of the Cooper River from the bunker he constructed with scrap wood in the back woods off I-676. He has a bed and a space for clothes and keeps a fire burning nearby.
Manoz was appreciative of the supplies for him and a handful of others. All turned down an offer to sleep in a shelter.
"I'm good," Manoz said. "I just need propane."
To donate, or volunteer for Volunteers of America, visit the organization's website at www.voadv.org.