Is it cash only

I can't honestly think of a single stand that doesn't take card by now. There is an ATM on site if needed, and a CapitalOne bank with ATM across the street (short walk). I think there's also a NASA Federal Credit Union with ATM next door.

no

Hours for Thanksgiving week?

I paid with my debit card no problem.

You can charge.

It takes cards

No you can use card or cash

Cash is preferred but card is accepted.

No most or all vendors take credit cards