We have them here too! Only one really, most are pretty nice. They are usually accomodating when the bike rack is full, which I am really thankful for, there are many times I would have missed my ferry otherwise.
I do get the occasional, why don't you just ride your bike teasing however!

I guess it does seem a little wimpy not to ride my bike the 17 miles to the next town on a flat bike trail. Unfortunately, that would put me very late for work.