Driver stopped by police and arrested for DWI following routine investigation at roadside including admission to drinking and field sobriety tests. Post arrest booking procedure includes breath testing sequence where Police Officer deems client a “refusal” for his failure to properly follow directions and submit a valid sample. Breath test operator claims client was not blowing hard enough and machine was indicating “insufficient sample.” Actual breath test ticket discloses machine error message for “RFI Detected.” Radio Frequency Interference was cause of machine’s failure to register breath result, not the manner in which the client submitted his breath sample. ALS based on alleged refusal of breath test vacated, driver’s license restored.