Yes they do 5-7am but best to call them to confirm. I received a email from them saying it is true. But I still would call them.

If you are referring to "free gas", not sure they offer something like that. If you are referring to the hyvee parks card for gas discount, you can get online at their website or their customer service desk.

Yes on the 11th! Free to vets!

No

I would make contact with them

No

You would be much better off asking an employee once you are at the store. I would head to the bakery in the back left side of the store and ask around there.