Windshield Wiper/washer problems of the 2008 Toyota Yaris

2008 Toyota Yaris 4 door, the left wiper is about 26 inches and the right is 16, thke defroster is in the center and only covers the left wiper and has no effect on the right wiper. When traveling down the highway in snowy conditions the right wiper will ice up and attach itself to the windshield, therefore making the left one not work either. The only thing to do is to pull over and clear it but that is also and and issue on the highway in the snow or ride it to an exit to clear it with absolutely no visibility. If the windshield had a heated strip at the bottom or they redesigned the dash board to cover the left wiper. This is the first snow storm I have driven in and by the looks will not be the last. I am currently trying to work with the Toyota dealership and have pictures of what happens on my sons phone to share. I have driven vehicles with limited visibility and have driven trucks for many years. If this was to happen to an inexperienced driver or one that does not handle things well it could have bad outcomes. I am writing this to make you aware of the problem and to make a record of for a history.