Q: Key would not release from ignition for multiple attempts

My car was in park when I was trying to turn it off, but I could not get the key out of the ignition. It took numerous attempts, but when the key finally came out the battery light stayed on. It took a long time and a lot of struggle to get the car to turn off without draining the battery. I can’t remember when this started happening. Both of the back doors no longer will open from the inside and the back of my SUV will not open from the outside. The air conditioner only intermittently blows cold air. There is plenty of coolant. Where I live, there are no Saab dealers near us. Can I take my car to an independent mechanic and will he have the proper parts to repair my car?