Raining on a workday

I got chastised today for calling in to work today and asking if I could work from home because I didn't feel comfortable driving the 60-70 miles down to San Jose, so I could sit in my cubicle and do the same thing I could do here. Its news to me, but apparently its "unprofessional" to feel uncomfortable about risking your life with all those maniacs who drive 75mph on greasy highway roads. Is there a handbook or something with all this shit in it? So I can read it and not have to get these little phone calls from my temp agency rep. Since my boss didn't talk to me directly, he went through my temp agency rep. How the hell was I supposed to know that this is unprofessional. A lot of my frustration about this ties back to the lack of a future at this company, and me feeling like they don't care about me, so why should I care about them. I get chastised for something silly like this. I feel like they're treating me like a child. And now of course, I feel like I'm somehow a wimp or a weakling for not feeling comfortable driving in the rain. But I feel its a significant increase in your chance of an accident (and therefore, death), and me driving to San Jose is not worth it, especially when my "employer" company has no vested interested in me, and will more than likely just let me go after my 15-month limit is up. What's the point?