Cal. Penal code PC 12027 states that any honorably retired peace officer with an endorsement from there Dept. To carry a concealed weapon my carry anywhere in the state. School property, private property, and Government property are not excluded.
Key word there.
I also don't see any provision in that that I can't ask them to leave my premises.
Might want to do some research on HR 218 because in it private property and school property are
specifically excepted
http://en.wikipedia.org/wiki/Law_Enforcement_Officers_Safety_Act
The Law Enforcement Officers Safety Act (LEOSA) is a United States federal law, enacted in 2004, that allows two classes of persons—the "qualified law enforcement officer" and the "qualified retired law enforcement officer" -- to carry a concealed firearm in any jurisdiction in the United States,
regardless of any state or local law to the contrary, with certain exceptions.
However, there are two types of state laws that are not overridden by the federal law, these being
"the laws of any State that (1) permit private persons or entities to prohibit or restrict the possession of concealed firearms on their property; or (2) prohibit or restrict the possession of firearms on any State or local government property, installation, building, base, or park."[1] This does not mean that LEOSA-qualified persons are prohibited from carrying concealed firearms in such areas, but only that they must obey whatever state laws apply on those two points. They are free to disregard all other state and local laws that govern the carrying of concealed firearms
The LEOSA overrides state and local laws, but not other federal laws, e.g., the federal Gun-Free School Zone Act of 1995 which prohibits carrying a firearm within 1000 feet of any elementary or secondary school. LEOSA-qualified individuals must continue to obey federal laws and agency policies that restrict the carrying of concealed firearms in certain federal buildings and lands
