There's a clear abuse here. If your roster shows you as being on a day off, I can't under any circumstances see that it's legitimate to walk through the staff security channel in uniform, walk onto the flightdeck and travel as though you were positioning staff on duty. Remember also that a contractor isn't an employee either.
Also clear problems with duty hours, days off etc. RYR are enjoying it more ways than one and it's the crew that suffers and are ultimately responsible for breaking dft rules. Sooner this is exposed the better for everyone.