(CBS) – A suburban township road official who apparently spent much of his time dialing it in from Florida did not break any laws, the Kendall County Sheriff’s Office said Friday.

CBS 2 Investigator Pam Zekman has done recent news reports about Oswego Township Highway Commissioner Gary Grosskopf after community activist Todd Milliron obtained Grosskopf’s cell phone records that showed from late April 2014 through June of this year there were 321 days of calls made from Florida.

The suggestion that the elected official has been doing his job from the Sunshine State drew public criticism and prompted the sheriff’s investigation. Grosskopf makes nearly $100,000 a year.

“Based on the facts from the investigation, there is not sufficient probable cause to support criminal charges,” the Kendall County Sheriff’s Department said in a statement.

Sheriff’s investigators determined there is no evidence Grosskopf failed to do his job as highway commissioner and that all information indicates he is a resident of Oswego.

“I am disappointed that this type of behavior erodes the public trust in their elected officials, but no laws were broken that would result in further activity from our office,” Sheriff Dwight Baird said in a written statement.

Milliron, the community activist, is disappointed. He says it’s now up to the state legislature to tighten residency restrictions for elected officials.

Grosskopf, reached at his Oswego office Friday, told CBS 2:  “I’m not interested in doing interviews or making any public comments.”