Al-Jazeera is showing moderate auto traffic in Tripoli at 9:18p.m. today Libyan time. See today's live blog http://blogs.aljazeera.net/live/africa/libya-live-blog-march-20-0 and scroll down to the YouTube at 9:18 p.m.
It looks rather normal. I won't venture any reasons for this; I can only speculate on various scenarios.