Hmm the easiest to exonerate yourself probably would have been if the test had come out negative. Since that's not a possibility now, you should focus on making sure that the police can't prove you were drunk while driving. Although reckless operation of your vehicle explains why you crashed, reckless operation and drunk driving are not exclusive; the brakes on your car could have failed even if you were drunk. Given that a prosecutor would use this line of reasoning to shoot down your alternative explanation, you must prove how you were not drunk.
Please seek a criminal defense attorney for legal advice.
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