Brandie. Prayers and hugs for you at this difficult time. It sounds like your seizure was pretty mild, but the deja vu feeling that you described sounds like what my wife experiences from time to time. She had her first grand mal seizure several years ago. She was not allowed to drive for 6 months. One of our children was in preschool and the other was still at home. Somehow Sue managed with the help of friends from our church. They were able to take her wherever she needed to go. She actually was not allowed to drive for nearly a year due to a second seizure. Once on the proper meds, she has been seizure free for nearly a decade.
I hope that your MRI scan goes well. My advice to you is to close your eyes and try to fall asleep. I find all the noises inside an MRI to be soothing once I relax. I guess I'm a bit odd that way.
I hope and pray that your doctor will be able to find some definitive reason for your condition. Keep the faith. You'll be back behind the wheel in no time.