They have tables at the Sci-Fi along with the cars. I would think that they would want you to eat at a table...the cars seem to be a little close for high chairs to be beside them. You'll still have a great time...have a milkshake for me!!!
Michele
They have high chairs and booster seats. When we ate there earlier this month (seated in a car) we had a high chaired toddler at our table(not mine). It seemed to work fine for him!!!