Is this true? Military Police to aid CHP?

[Sol Invictus]

http://bbvm.wordpress.com/2008/12/14...ardino-county/

The Marine Corps Air and Ground Combat Center (MCAGCC) Provost Marshal (head of a unit of military police) and the local California Highway Patrol office will begin working together 12/12 — and through the holiday season — in a joint effort to reduce accidents and drinking and driving. The combined mutual cooperation between the Marine Corps Military Police and State enforcement officers will begin somewhere along Highway 62. The CHP will set up DUI roadblocks with the presence of Military Police. A violation of the Posse Comitatus Act.

I am not an American, but I am a world aware citizen, and I have to say this is very frightening if true and unchallenged.

Military LEO working with civilian LE on a public highway? If this is bona fida, then there is a massive concern here about 'mission creep'.