South Park

I have a neighbor that has roughly 6 vehicles the majority of the vehicles are parked on the street taking up any parking space available for the entire block.  Not sure what else to do.....we have called and reported the vehicles routinely due to them being in the same spot for weeks.  This is a nuisance in the winter our driveway is packed with snow and ice because the plows can't get through .....what a pain.