Took my car in yestersay, nothing wrong with it. J...

Took my car in yestersay, nothing wrong with it. Just needed an oil change. After the works was finished I took my car home to get back in the car and now the engine light is flashing when I put the car in reverse is shakes real bad when I go put it in drive the car shakes real bad and seems like it wants to stall. Nothing was wrong with this car at all just need a simple oil change and now i have a car not wanting to work also out my son at risk when trying to drive it and I had to call off work today. Going to Ford yesterday was my first time and this is what I'm dealing with now, now I have to wait till they open to call losing a day of work. This is not okay in my book and I am extremely upset with this service