Legal or not the FBI and CIA are pretty much going to do whatever they please. You may think most invasions of privacy would be illegal, but thanks to the Patriot Act and the "War on Terrorism," all Government officials have to say is that they think you were involved in some Anti-American Activities.
As for Onstar
Quote:
If the surveillance was done in a way that was seamless and undetectable, the court would have no problem with it."
Under current law, the court said, companies may only be ordered to comply with wiretaps when the order would cause a "minimum of interference."
(source from PAK's link)
Also
Quote:
The PATRIOT Act (a 342-page piece of legislation) was signed into law on October 26, 2001 and contains significant provisions expanding the power of law enforcement agencies to conduct electronic surveillance. Under the PATRIOT Act, law enforcement agencies have increased authority to use wiretaps, pen registers, and trap and trace devices, and can now require providers to disclose a wider scope of customer information pursuant to lawful requests.
(source from http://www.tkcrowe.com/publications-dec.htm)
And
Quote:
CALEA was enacted in 1994 with the goal of allowing law enforcement agencies to keep pace with rapidly changing developments in communications technology. CALEA imposes a number of obligations upon telecommunications providers, including requiring that providers upgrade the technical capacity of their facilities so as to ensure that their equipment and services are capable of providing surveillance upon the proper request of a law enforcement agency. The law sets forth four "assistance capability requirements" that providers must be able to supply to law enforcement agents, including the interception of wire and electronic communications, the interception of any associated call-identifying information, and delivery of these interceptions to law enforcement facilities.
(source from http://www.tkcrowe.com/publications-dec.htm)
Now, while the monitoring cannot interfere with the actual Onstar service, any information that Onstar has can and will be given to authorities if requested; and if the FBI finds a way to monitor the vehicle with the Onstar hardware without interfering with the actual service, more than likely they will be able to do that as well.
Privacy is a hard thing to come by these days, so you had better just pack an extra key.