I've always traveled early in the year before the main tourist season. I've used Washington State ferries a few times,
and I've used BC ferries many times, including the Inside Passage Route and back and forth from Haida Gwaii without
any issues. Never saw a bike rack, but I could bungee my bike tight against the side bumper railing up at the front each
time which allowed me to get off quickly and out of the way. I also had no vandal or theft issues.