I had a driver tell me I had the right-of-way at a MUP crossing. Actually, I don't. As it is in most states, a bicycle must stop and wait till it is clear to cross. I even have a stop sign on the MUP at road crossings. Since the roadway has only a warning sign, how can I possibly have the right-of-way.
People get confused on this because of various pedestrian laws and guidelines. However even a pedestrian will be found at fault if they suddenly jump into the path of a vehicle of any sort that is on a crossing road. When you get down to what the laws actually say, it boils down to the driver is only at fault if the person was already in the crossing and they didn't stop for that person.
Maybe there are some exceptions, but the signs at some crosswalks in other states I've been to only say "Stop for pedestrians in Crosswalk". Doesn't say stop for pedestrians nearing the crosswalk and it certainly say nothing about stopping for cyclists.