It is not impossible for you to get in with those stats. Every year people get in. Like mentioned above you will need some good ec and in addition really good letters and have no score below 16 on your dat (it would help if you posted all of them). Trying this is taking a
BIG chance.
In order to be truely competitive you NEED to retake the DAT. It is already hard enough to get into school. Having a low DAT is definetly going to hinder you. If you call the schools I would be confident that more than the majority would tell you to retake!
Just buckle down. You now know what the test is like and can KNOCK it out of the park. Change your study plans if you need and reevaluate. You can retake it by the end of june (3 months from first test) and still have your application complete fairly early... THAT IS WHAT I WOULD DO! You aren't giving yourself much of a chance with those scores.
my 3 cents