Subaru repaired my brakes and I would like to.

Subaru repaired my brakes and I would like to know if I was overcharged. They replaced front and rear pads that were worn and cleaned and lubricated the caliper slides. Labor was $530 and parts $199.99.

Also, my vdc light was on and they are replacing the steering angle sensor as a one time goodwill gesture because I was laid off. They said the part would have cost $400 and labor $300 for an addtional $700. They said they could do this if I had the brakes repaired that day.
They also changed my oil because when they checked it it was down 2 quarts - they did not even ask me and I was there. That cost an additional $28.55 for parts and $12.40 for labor.
What do think of this?