The Longmont Times-Call reported Monday (http://tinyurl.com/c8lfq7k ) that 75-year-old James Ernst of Erie entered his pleas last week.
Ernst is charged with harassment, illegal use of a horn and driving two slowly.
He hung up the phone without commenting on Monday.
The incident occurred in September on a two-lane road east of Longmont. A video the cyclists posted on You Tube had been viewed more than 457,000 times by Monday, according to the website's counter.
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