OCONOMOWOC, Wis. — A dispute over parents parking near an Oconomowoc home during school pickup has led to a felony criminal case and renewed scrutiny of the confrontations surrounding it. Peter Holmes, 69, is charged with making terrorist threats causing public panic or fear, a felony. Prosecutors allege Holmes sent an email to the Oconomowoc school superintendent complaining about parents of Silver Lake Intermediate School students parking in front of his house. The email allegedly included the warning: “Pellet guns have a weird way of going off if you catch my drift.” Holmes told reporters he did not remember sending the message, though he said it was possible he had. He is scheduled to appear in court next month. If convicted, he could face up to three and a half years in prison. The felony case follows a February confrontation captured on video by a parent who recently came forward. The footage shows Holmes yelling at a woman who was sitting in her car while waiting to pick up her child. Holmes appears to kick the vehicle twice and shouts at her to move. He also picks up snow and throws it at the car. Municipal court records show Holmes received a $500 disorderly conduct ticket after the February incident. He pleaded no contest and was found guilty. Holmes has said he complained repeatedly to the school district and police for about three years about vehicles stopping near his property during dismissal. In May, police also confronted him after he allegedly placed sprinklers so they sprayed across the sidewalk outside his home. According to the account of that incident, Holmes said the sprinklers were intended to keep children away from the sidewalk. He received a warning for harassment and intimidation. The conflict underscores how routine school pickup congestion can become a serious neighborhood and public-safety issue when disputes move from complaints to intimidation or threats. The allegations against Holmes have not been proved in court, and the felony charge remains pending.