I bet it was. I've ridden on the pavement once or twice as the path can flood at milton in winter and that just gives you a clue how bad it is.Have ridden the dualled section of the A82 westbound a few times - honestly not sure why as the cycle path from Bowling is orders of magnitude more pleasant.
Doing so eastbound would require a deathwish. I didn't know which junction to turn off at during my JoGLE and I had ridden the A82 all the way from Spean Bridge, and I didn't expect it to suddenly turn into a motorway in all but name. Riding between Milton and Bowling uphill in torrential rain with cars whizzing past was absolutely terrifying.