<[Where] Did the feds get this type of plane?

From federal supplies.

what are it's resources?

Probably Andrews AFB.

how much of this domestic surveillance is going on in the good ol USA?

According to the report, and all previous reports on the subject, just this.

I mean, isn't there a law that forbids the military from getting really involved in states law enforcement duties?

No.

Posse Comitatus Act (18 USC 1385):
A Reconstruction Era criminal law proscribing use of Army (later, Air Force) to "execute the laws" except where expressly authorized by Constitution or Congress. Limit on use of military for civilian law enforcement also applies to Navy by regulation. Dec '81 additional laws were enacted (codified 10 USC 371-78) clarifying permissible military assistance to civilian law enforcement agencies--including the Coast Guard--especially in combating drug smuggling into the United States. Posse Comitatus clarifications emphasize supportive and technical assistance (e.g., use of facilities, vessels, aircraft, intelligence, tech aid, surveillance, etc.) while generally prohibiting direct participation of DoD personnel in law enforcement (e.g., search, seizure, and arrests) . For example, Coast Guard Law Enforcement Detachments (LEDETS) serve aboard Navy vessels and perform the actual boardings of interdicted suspect drug smuggling vessels and, if needed, arrest their crews). Positive results have been realized especially from Navy ship/aircraft involvement.

And anybody in the know have any info or links to this spy plane?

as you did not provide a link to your attack, I would guess it to be the same drone technology utilized so well in both Afghanistan and Iraq.

Looks like they use it a lot out west for the druggies....

Likely.

Dan