Is it illegal to put a parking sticker on a car and leave a phone number?

Vehicle parking in the property management community, community owners should also regulate parking, and abide by the parking management regulations of the community. Inform the owner of illegal parking and stop his misconduct. If the owner's disorderly parking of vehicles leads to violation of public security, environmental protection, fire protection and other relevant laws and regulations in the property service area, the property service personnel have the obligation to inform or stop the owner's misconduct by posting notices.