I rarely drove a car when I lived in SD, but every time I did it absolutely grated my nerves. And if anything remotely resembling water fell from the skies, forget it; your commute time just tripled.
I understand that it doesn't rain much, but seriously, come on. I remember whenever a light mist would accumulate some mornings, I'd be guaranteed to see at least 1 flipped car on my 12 mile commute from UTC to Poway.
I feel your pain.
I live in Houston now (MUCH worse traffic), but luckily I only live 7 miles from work, and I go against traffic coming and going. Almost finished with my commuter bike, and then I won't have to worry about traffic at all.