Mine was creaking, I sprayed the rear sway bar where it goes through the bushings with some silicone spray lube and it went away for like 2 weeks. I plan on taking the swaybar bushings off and using some Energy Suspension poly lube on them as a long term fix. It happened on my other car when I installed a racing sway bar with poly bushings, so I knew what it was right away this time. It's a pretty common problem on cars with stiff swaybar bushings for them to creak in cold weather if they don't have lube on them.
I don't think the front bar is creaking at all, but I plan on lubing that too.
