Turtles get cold-stunned when water temperatures fall. One group said it was taking care of more than 2,500 after the ice storm in Texas.
The algal bloom has also killed fish, sea turtles and manatees along the Gulf Coast.
Yaqun Lu, 41, was reportedly also seen by bystanders and police officers "jabbing" at the nest with a wooden stake.
The turtle was found – visibly weak and sick – on a beach in South Africa earlier this month.
The warmer ocean waters of climate change entice the turtles to linger too long too far north.
Authorities are also investigating the deaths of 113 sea turtles; they were found in the southern state of Chiapas earlier this month.
Dozens of manatees and hundreds of sea turtles have died in the longest-running red tide outbreak since 2006.
Abandoned objects can be deadly for the endangered animals.
Scientists observed turtles using flippers for digging, rolling stuff and swiping at prey.
The little guy named Alby is the straggler of 122 brothers and sisters.