Replying to Parents Just Don’t Understand

So it’s been absolutely nuking snow all day and through tonight, so I had planned to go to the mountain tomorrow. I’ve never really been to my local on a pow day so I was stoked. I’m 17 so I still live with my parents and they don’t wanna let me go because of the roads. But I drive a subaru and I put snow tires on it and am more than capeable of driving through this. I even drove around with my dad today in the worst of the storm to show him I could and he agreed I did well. But they still won’t let me go. They don’t think my excitement is worth the risk. And they’re probably right, but I’m sick of skiing on a machine made sheet of ice. Anything I could say to them to change their mind?