your question got my attention so I went straight to the POM cam and see this .....
View attachment 480955
not being towed ... but a tug that may have been assisting with departure . . .
Thanks. It was truly going out backwards and I could see no wake or whatever it is called from the engines. Then the tug moved to the side, the ship turned and I had to work on dinner. It does appear that there is at least some power coming from the ship in your screenshot. I guess I just couldn't see it earlier.
Last I looked the situation at Port Canaveral all four ships are still docked.
Thanks again.