I used to live right on the Reading line north of Trenton (on its way to Bound Brook), and saw the full train many times out my kitchen window more than 20 years back (although I seem to recall it usually went through before dawn).
ALso, regarding "Camden to Newark", was the poster talking about CSX Camden yard in Baltimore (there at least used to be one, I think), or Camden NJ? (the link is now dead). The train went nowhere near Camden NJ (unless you count across the Delaware River in downtown Philadelphia along the Schuylkill) . It crossed the Delaware on the ex-Reading bridge in West Trenton.