Can they charge you, yes. Whether they can convict you is another story. I don't practice in AZ so I can't answer your state's requirements for refusal or testing after the accident, but I can tell you that all DUI laws require you to actually be under the influence of the drug/alcohol at the time of driving. You should talk to an attorney in your area right away.
There may well be valid defenses available to you so get a well qualifed criminal defense lawyer on your side to act as your advocate as soon as possible. I agree with the observation of Mr. Epifanio. Good luck to you.
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