Are you a single rider? If so then I don't see why you can't. Because Giant is down I recommend starting at Mr. Freeze then moving to Batman. After that ride whatever you want in whatever order.
I am. They have blocked off the ride and have blocked the view of the station with a tarp. There are security gaurds in the station. They have also closed the train and the oil derrick.
One last thing I'll say before I head off to bed. New Texas Giant was running EXTREMELY INSANE today like I had never seen before. It also had had this sketchy feel to it, almost as if you could sense something was about to happen. It's an extremely sad situation for all parties and my thoughts are with those affected.