Pipe Frog in Durham, NC

I do a lot of walking and try to take my camera with me.  Of course I always have to poke in any hole or crevice I see just to see what is hanging out.  This from is living in plastic pipe sticking out of the ground.  Not sure what the pipe is doing there other then being a home to this poor frog.  Thought about putting something in there to let him out but I didn't know if Smeagal or Gollum would be let loose.