Cary Police said Howell put his three grandchildren at risk and damaged personal property.
On Monday, a district court judge sentenced Howell to two consecutive 60-day sentences, which were suspended for unsupervised probation and 75 hours of community service. Howell also can have only supervised visits with his three grandchildren.
Howell has said the actuations are false and just part of a custody dispute between his son and ex-wife.
Howell was Wake Tech's president for 23 years and later retired in 2003.