I GOT A DUI AND HAVE NOT DRANK AT ALL.

I GOT A DUI AND HAVE NOT DRANK AT ALL. I RECEIVED 3 DULITED TEST AND AFTER I LOOKED AT THE DATE'S I REALIZED IT WAS WHEN I TOOK MY DAD TO THE DOCTOR ( HE IS DISABLED AND HAS TO GO EVERY 3 WEEKS AT 7:30am) I WAKE UP AT 5 AND DRINK AT LEAST A POT OF COFFEE IF NOT MORE. I WENT AND TESTED RIGHT AFTER I DROPPED HIM OFF. I WAS TOLD THE COFFEE WOULD NOT DULITE THE TEST. COULD SOMETHING ELSE BE WRONG THAT IS NOT AGREEING WITH MY URINE MIXED WITH COFFEE