In Parking Lot At Walmart. I Do Not Drive, Vision.

In parking lot at Walmart. I do not drive, vision. My husband is having a Grand-mal affect of confusion. Cannot talk correctly. This has happened a few times before, but 3 times in 1 month. It usually lasts 30-60 minutes. We are trying to wait this out, as it is dark and we are about 25 miles from home. He feels he can drive, but still is confused in verbiage. He has driven before in this condition. He has had cat-scans to verify this problem. Have you heard people driving in this condition? We will get something to eat to wait it out. His right hand became numb but now has feeling back. His speech is coming around somewhat.
Thanks for any help.