Glad you got down ok.
All of our Robbies have a "L" and "R" sticker on the pedal shanks, only seen as you are about to install them.
I always thought that the longer pedal itself was one way of verifying that they are in correctly. I make my pedal check of the pax side pedals right as I place then on, with my hands to verify movement. Besides the control full/free check.