No you said research because private property is private property and I stated that where I live if it is open to the public, then traffic codes are enforceable, including and especially handicapped parking, there are no special statutes regarding them vs othere parking and traffic codes. Similarly an accident in that type of parking lot is treated the same as if it happened on the street.
Parking on through fares is a whole different animal then "rules of the road" moving violations.
I am not sure about John exertice, he certainly put it percise and correct, I have decades in law enforcement and private property is that with an exception for the major offenses , or as stated parking violations on the handicap or restricted use for patrons only.
These are not moving violations.
The OP's jurisdiction is what counts in this case, She does need to contact the State Police, the magistrate office, or local representative to find out what authority gave the officer the right to write the citation.
But I am certain in your area, if the law enforcement is on the up and up, they do not have enforceable powers for the Vehicle code moving violations of their state on private property. Some departments THINK they can enforce these rules and regs, but they can't.
Rules of the road, stop signs, traffic s
ignals, speeding, staying in your own lane, can not be enforced on private property. Who would give them the authority?
Each stop sign is in the town, city, borough, etc local ordinance and HAS to be a state approved placement. Even a sign warning of a school bus stop ahead, fire station ahead, etc. In fact Penn dot will aprove the placement, but not give you the sign, you purchase the approved one and put it in yourself.
Think about it, if they wrote the ticket, that stop sign HAS to be an accepted stop sign in the state system. You cannot just go out and place a stop sign at the end of a road and if someone runs it ticket for the infraction....
There was a local development that had a long stretch with many cross streets. TO slow traffic, the powers of the town wanted and had the road crew go out and place stop signs along the stretch. Penn Dot states that you cannot have a stop sign on a major through fare, only the roads entering it.
Every ticket was withdrawn, and signs were removed with some strong thoughts from Penn Dot.
We needed a stop sign placement because the intersection had two right of ways. If there was a stop sign there 50 years ago and fell, there was no indoctrination of that sign on the books.
Penn Dot needed the traffic study and paperwork tons of work to get that stop sign in. Then it had to become part of the local ordinance, which gave the police dept the authority to write a violation. If the property is private, NO ONE has the right to put traffic control devices on a local ordinance to be enforced.
The supervisors wanted a stop sign at the end of the local park exit, they told the road dept to erect the sign from one in the garage. Then wanted me to sit and watch the little league parents just roll through it to ticket.
Well, that sign was never accepted by the local ordinance, let alone Penn Dot regs. Nice decorative device but had no more enforcement then if you put one on your property.
IF you live in a private development, they may have their own ordinances and police department...security, which stil cannot exceed the enforceability of the state statute for "Rules of the Road."