Yup. Works when at room temperature (or above). Went out today (about 5 deg C) and after about 10 mins the lens starts refusing to AF. After a few more mins, the AF becomes even more sluggish and intermittent. Sometimes it can be "kickstarted" by manually focussing to the approximate focus and then the AF works again for a little bit, then malfunctions again.
Taking it back inside, I try it on a different body, still refusing to AF. After a while after it has warmed up again, it's back to normal operation on both bodies. I go out again into the cold to test my theory, again after a few minutes the AF begins to act up again. Bring back inside, now working again.
Frustrating, especially since I had it repaired twice (took Sony two goes at it before they managed to repair the lens) for the same problem about a year ago, though in that case the AF malfunction was permanent. I do recall the first time the AF went away, I was out in the cold. However it never recovered even when the lens warmed up. After the first two rounds of repairs, I didn't have an opportunity to take it anywhere cold. It's been used during the summer and on the equator. By Sod's law, I would have to find out about the cold weather problem just after the warranty has run out.