Okay, so here's what I have found so far.
http://texasofficertraining.com/blog/2012/01/29/police-impersonation/As it turns out...Vector Security may just be committing an actual felony by making a traffic stop which includes detaining the driver.
This also INCLUDES "Private Communities".
So if you have been stopped by Vector and detained (not allowed to drive away) you may be able to take legal action which can include having the security officer arrested as well as suing Vector and the Association.
I'll keep on with the research, but make it your all to consult with an attorney if Vector has and/or does stop you with their illegal blue lights.
Here's the law regarding the lights. I am still looking for the actual PA penal code that makes it a crime for Vector to stop anyone. According to this law below, Vector isn't even supposed to have blue lights on their vehicles in the state of Pennsylvania.
CHAPTER 173. FLASHING OR REVOLVING LIGHTS ON
EMERGENCY AND AUTHORIZED VEHICLES (3) Blue lights. A vehicle may display blue lights as provided for by 75 Pa.C.S. § 4572(a) (relating to visual signals on authorized vehicles). Vehicles described in 75 Pa.C.S. § 4572(a) may be equipped with a light-bar assembly using only blue lights. See Figure 3.1.
§4572. Visual signals on authorized vehicles.
75 Pa.C.S. § 4572(a)(a) Flashing or revolving blue lights.--
Ambulance personnel,
volunteer firefighters and
owners and handlers of dogs used in tracking humans may each equip one motor vehicle with no more than two flashing or revolving blue lights.
That said...PA law Prohibits non-emergency vehicles from having blue lights other than those mentioned above and underlined. ERGO----Vector Security CAN NOT pull you over!!!!