I try to avoid the MUP as much as possible now because of the lack of common courtesy. People/families see me from half a mile away, and don't open up a slot for me to pass, forcing me to slow down to 5mph. One particular example happened to just 3 weeks ago. These two cyclists (mom and 12-14 yo kid) were heading towards me and taking up the entire cycling lane at the same MUP. I waved nicely from over 200 ft away to let me pass on the right as it is judiciously my lane. But, they wouldn't have it. I had to slow down to a screeching halt all while the mom screamed at me as I passed "f*ck you, he's just a kid!" I was at a loss of words.