Officer Disciplined in Kennedy Crash

Capitol Police have taken disciplinary action against a watch commander for the handling of Rep. Patrick Kennedy's car accident, acting Capitol Police Chief Christopher McGaffin said.

McGaffin said the incident was improperly delayed due to "poor judgment" on the part of police managers and that a field sobriety test should have been administered to Kennedy after his car hit a barrier near the Capitol at 2:45 a.m. on Thursday.

The police report said Kennedy was speeding and his eyes were "red and watery." It also stated that his speech was slightly slurred and that upon exiting his vehicle his balance was "unsure."

Kennedy announced earlier today that he would enter the Mayo Clinic for treatment for addiction to prescription pain medication.

There are questions about why Kennedy was not given a sobriety test immediately after the accident.

"I would say within law enforcement that there is probably … concern that consideration was given a member of Congress that would not be afforded a normal citizen on the street," said Lou Cannon, president of the Fraternal Order of Police for the District of Columbia.

McGaffin would not elaborate on the disciplinary actions, but he did say "significant administrative and personnel corrective action has been taken." Other officers may be disciplined. No one has been fired at this point.

The report indicates alcohol may have played a role in the crash, but officers from the Capitol Police on the scene were apparently told by their supervisors to simply drive Kennedy home. Kennedy has said that he did not ask for special treatment.

A police officer in Los Angeles said it appears that standard procedures, which would include a field sobriety test if the driver was found to have bloodshot eyes or slurred speech, were not followed.

LAPD Detective Felix Padilla said if an officer suspects driving under the influence he has an "obligation to do that."

"We have a duty to the public to protect the public, and to ignore that would be neglect on our part," he said.

Kennedy has said he was not drinking but had taken the sleeping pill Ambien and another drug that can cause drowsiness. Experts say Ambien has been linked to so-called sleep driving -- where users are not even aware they are behind the wheel.

Kennedy has long struggled with depression and drug addiction and now the congressman admitted that he once again needs help.

ABC News' Lisa Stark and Mary Walsh contributed to this report.