If they were not parked illegally then they are not responsible for your accident.
No. It would be highly unlikely that you could ever prove liability of a vehicle that was not in motion at the time of your accident, even less likely if if that vehicle was not illegally parked.
Just file a claim with the other parties insurance company. You called the police and got an accident report, right?
No, although if you don't report it the insurance company typically won't pay for repairs.
If you report the incident to your insurance company, and want them to cover the damages, it's more than likely they will consider it an 'at fault' accident, and it's possible your rates will increase, especially if it's not your first accident. The best way to avoid insurance rate increase in this situation is to pay for the damages yourself out of pocket, and not report it to your insurance company.
$44
When he causes the accident
No, parking tickets do NOT affect your car insurance rate.
In Ontario parking lots are private property and do not fall under the highway traffic act. Given this Ontario also has whats called no-fault insurance, meaning if 2 people are in an accident in a parking lot, person 1's insurance covers person 1 and person 2's insurance covers person 2. If there are evidence who can mention who was in fault while accident happens, then only you can decide on this. But if your car hit another parked car or vice-verse then you should be in fault. When I face same problem, my insurance company Chola MS favored me as my car was parked in parking lot and someone rushed into my car.
No, an insurance company does not get notified of a parking tickets. Insurance companies are only liable for handling accidents.
Police
Calling the police lets the victim file a police report to provide for both insurance and legal reasons.
Yes, most likely, your premium will raise to some degree. If you don't claim it through insurance, there would be no premium hike. Parking lot incidents are almost ALWAYS considered 50/50 fault, sad to say, unless you can PROVE otherwise!