It is possible to look ahead at the traffic conditions through SigAlert, just google it and check it. They update it ever few minutes. IF THE TRAFFIC TURNS RED AND YOU'RE ALREADY ON YOUR WAY, exiting on Las Pulgas RD may bring you trouble as sometimes the border patrol will hang out on the offramp and will pull you over, it's happened to a few friends of friends who ended up getting pulled over and detained. You're better off sending a look-out if you can as well as looking at SigAlert and hoping you get lucky not to have them throw up a checkpoint right as you're nearing it like they did on my last trip I took with my USC G/f to SD to visit my family...lucky for us, they had shut it down by the time we got about a quarter mile from the checkpoint.