Yes, just like a parking ticket.
If the parking is on their property, yes, they can. If you are paying for parking yourself, you have the ability to do what you wish. But they aren't responsible for you.
In a parking lot>
You can't park there on that street.
Depending on where you are parking, you may be allowed to park 30 minutes to 72 hours. Each city and state has it's own parking laws.
The law for unauthorized parking will depend on the city and state laws. In most places, vehicles that park in unauthorized parking spots will have their vehicle towed.
No, it is not permissible to park before a no parking sign.
No, it is not permissible to park behind a no parking sign.
No, it is not permissible to park in front of a no parking sign.
parking space car park parking lot drive driveway
Yes, you can park a bicycle in a parking spot designated for bicycles.
No, there is no parking lot in Central Park. There are some parking spaces at or near the police precinct and the Parks Department stations, but they are reserved for official vehicles only. There is no public parking inside the park.
No, it is not illegal to park in a parking lot as long as you follow the rules and regulations set by the owner or operator of the parking lot.