The canals around here are loaded with released sliders that people didnt want.
Someone I know released 4 tiny sliders few yrs back in lake behind her house now they are rather large doing well there. At time no turtles there so they lived . I didnt live here than or would have taken them as love turtles.
She bought them as quarter size kept them in those plastic tiny turtle islands after couple months let them go they thrived and grew but ofcourse they arent snappers but I would think if conditions are correct any turtle would thrive.