This is inherently the problem with (most) cyclists, and why motorists in general don't like them.
They want it both ways. They want to be a pedestrian when it suits them, when they want to blow stop signs, jump up onto the sidewalk, expect cars to stop for them at crosswalks, and weave through traffic at will. But they ALSO want to be a vehicle when it suits them, when they are sharing a road that doesn't have a bike lane, for example.
And they seem to think that the motorist should just KNOW when they are being one or the other.
It's frustrating and annoying. They are a vehicle. They are governed as a vehicle. Suck it up, cyclists.