FNC's Dr. Manny was on, and I think he found the explanation bit too "textbook". The doc also had a prob with the cops not taking Kennedy to the ER since Kennedy could've been experiencing a problem with his medications. And the doc also seemed to think it was a bit odd that the two meds were prescribed together/concurrently since the anti-nausea med is pretty sedating on its own.
Are we waiting for young Pat to become a killer by car accident while driving impaired, before he's taken to account? As many others point out, and are right -- most people would have been arrested, cuffed, fined and lost their licenses just for that one instance in DC, if not also the one a few weeks back in Rhode Island.
Some interesting info about Ambien (zolpidem)-
http://en.wikipedia.org/wiki/Zolpidem
Considering the Kennedy history regarding drugs and alcohol, I wouldn't be surprised if Patrick needs serious help in that area. If that's true, it is a huge disservice to the people, and to Patrick himself, if he isn't held accountable.