Can you go back out of Dolly Wood to your personal car and then re-enter the park?

Yes, they stamp your hand

Yes, just let them know and they will stamp your hand for reentry.

Yes but you will have to let them know.

Sure, be sure to get your hand stamped.

Absolutely!

Yes you can and if you get rained out after 4 pm they give you a rain check for the next day

Yes.....we had a multiple day ticket and we could come and go if we wanted. They will search your bag if you are returning to the park each time if you have one.

Yes

Yes, we did this frequently as we went multiple days and kept a cooler in the truck with sandwich stuff.

Yes, just be sure to get a stamp