Went in the middle of the day and they were closed.
Burger was pretty good and portions are big. Not a sit down restaurant - more like a 5 Guys.
Spend a half an hour to an hour here. It's right off the highway and convenient if you need to stretch your legs or get a bite to eat. The life size displays are pretty cool it gives you a really good insight of the time period.
Pretty cool little museum inside. It only takes about 30-45 minutes to go through and it's self guided. It is also very close the highway. If you have the time you should stop by.
You should check for sure to find out what time the Museum opens. I was there around 9am and they were close with no sign to say when they opened. There was a cool Marshfield walk of fame just outside though and a cool Hubble Telescope replica across the street.