As per USDA Dangers zone .
Danger Zone" (40 °F - 140 °F)
Leaving food out (or cooking ) too long at room temperature can cause bacteria (such as Staphylococcus aureus, Salmonella Enteritidis, Escherichia coli O157:H7, and Campylobacter) to grow to dangerous levels that can cause illness. Bacteria grow most rapidly in the range of temperatures between 40 °F and 140 °F, doubling in number in as little as 20 minutes. This range of temperatures is often called the "Danger Zone."
The final IT and cooking temperature for turkey is 165f so this method of smoking is safe . however saying that that at this smoking temperature 170-180f it will battle to reach the IT of 165f . now will be tasty ? this is a good question .like tim said the skin will be rubbery and the meat will be dry, it will loos any moist it had .