Yeah,
I don't think dragging it 50 feet will hurt at all. These hydros are bullet proof. Now if they dragged it behind a truck 500 feet doing about 15 MPH, that's a different story. You said the manual relief valves are stuck down right? Then you shouldn't have anything to worry about. The manual valves would have been pressed down by the manual lever to tow and they are already down so no harm.
