INDIANAPOLIS -- Former State Rep. Dennie Oxley II turned himself in to authorities at the City-County Building Thursday morning, more than 17 hours after he promised prosecutors he would surrender on charges of public intoxication and impersonating a public official.

A warrant was issued for Oxley's arrest Thursday morning. 6News staked out the Arrestee Processing Center through the night, with no sign of the once lieutenant governor candidate, 6News' Jennifer Carmack reported.

Shortly after his appearance at the CCB's Failure To Appear Office, Oxley declined to comment on his most recent run-in with the law.

"I have no comment at this time," he said. "All the issues will be addressed in court. That's the appropriate place for them to be addressed."

A judge assigned a bond of $500 and ordered that Oxley be tested for alcohol twice weekly.

Indianapolis police said Oxley told officers last Friday that he was immune from an arrest on public intoxication charges because he is a lawmaker and the Legislature is in session.

But Oxley is no longer a legislator, having given up his House seat in 2008 in a failed bid on the ticket of gubernatorial candidate Jill Long Thompson.

"He poses a risk to this community," said Marion County Chief Trial Deputy Prosecutor David Wyser. "He has a pending OVWI in a different jurisdiction. These charges are a result of alcohol. He left a 21-year-old incoherent, face-down -- certainly posed a risk to her safety."

A taxi driver drove Oxley and Kristin Dowlut, an Indiana Statehouse intern, to a downtown gas station, where the intern was passed out in the parking lot for 10 to 15 minutes.

"Mr. Oxley is the one who betrayed her trust," Marion County Prosecutor Carl Brizzi said Wednesday. "She was with him. She was obviously in distress. Many things could have happened to her in the time that she was face-down in that parking lot."

When police arrived, Oxley ducked behind a car, as seen on surveillance video from the gas station, and then tried to take off down an alley, police said. Oxley had a legislator identification card and used his purported status to avoid arrest that evening, Brizzi said.

Officials told 6News' Rick Hightower that Oxley's legislative ID card was not active, but that he had a second ID because he was currently employed by the House.

Hightower said he was told late Wednesday that Oxley didn't immediately turn himself in because he didn't want to face the media. His attorney, Richard Kammen, said media coverage of the situation has been blown out of proportion.

"People get arrested for DUI all the time. That doesn't make them a risk to the community," Kammen said. "The fact of the matter is that the full story of this will be aired out in court, and if the public sees the full story, they'll see that there's, like most other things, two sides."

Oxley was also arrested in February on a drunken driving charge after a crash near his hometown in southern Indiana. A hearing in that case, originally set for earlier this week, was postponed to September. A pretrial hearing in the Indianapolis case was set for Aug. 6.