There was lots of snow here in Binghamton New York. I had to move my 2008 Prius from the street to my landlord's driveway. The city hadn't gotten around to plowing so there was 8-10 " of snow on the street. I'm not sure if I have the all season tires or not; I assume nt since they came with the used car. In any case, I could not keep the front wheels going straight! I would start with them pointed straight and the car would slew to the right or the left. In trying to correct for each change of direction, I lost track of what was straight and what was not. Going extremely slowly helped. Backing up was a lot easier, which made me think it was the front wheel drive that was the problem. A search online confirmed that front wheel drive is really bad in such conditions. I've never experienced anything like it. Don't try it without something like snow tires. I'm looking into tire socks. A lot cheaper than snow tires for the occasional freakish event like we're experiencing now.
Your ground clearance is only around 5 inches; so with 8-10 inches of snow on the road - your basically a snow plow. IMHO; snow socks isn't going to help much in those conditions. Wait for them to plow the road or follow another low slung car to blaze the trail for you. The reason you can back-up straight is because you already packed down the snow. Work smarter, not harder.....