Hit and Run

I live in Alberta, Canada.
About a month ago I let a friend practice driving with my parent's car. She had only her learner's permit, and I'm still on my graduated license, so technically she needed a fully licensed driver with her. She turned a corner too quickly and hit a private hedge. We were worried only about my parents knowing, so I went home and told them I was the on driving. The police showed up that night because someone had taken down my license plate number, and let me know that I'd committed a hit and run. I told them the same story as my parents. Now I have to appear in court in a week, and would rather tell the truth. Is the only charge I'm facing lying to a police officer, or am I also responsible for the hit and run? Please let me know what will likely occur.
Thank you!

I'm getting to you too late, but I'll leave this for future visitors.

You remember the cliche about how you must keep on lying to maintain a lie, you're in a terrible predicament. I live in the states so I can only speak of what would happen in my jurisdiction. The owners of the property will make a claim against your insurance company and your rates will go up, the other part about the hit n' run is more problematic and might result in a suspension of the license and mandatory traffic school. If you already gave that fabricated report to the police and they have it on file, go on with it, because I have a feeling your "friend" will not agree to change her story to protect you and put the blame on herself and her case is stronger than yours. The thing I would do is that if your friend is working, ask for a cut of her wages for a while to pay for your troubles. Even if the court believed you were merely a passenger, you still will get flak.