correct strategy when dealer shows hole card by mistake

I was playing in Foxwoods with an inexperienced dealer. She kept tumbling the stacks of chips, dropping cards, etc.
One time she had a face card up and accidentally pressed the wrong button when checking for the Ace. The hole card turned out to be another face card. The dealer called the pit boss, who decided to finish the round with both of the dealer's cards exposed.

My first two cards summed up to 9. I decided that my chances of getting a 21 or a 20 were small, so I surrendered. It worked out that time, since the next two cards were a six and a ten and the guy next to me drew the six to his fifteen.

Was my decision right? In general, if surrender is available, what is the strategy with the dealer's cards exposed?
Also, should the players demand to win or replay the round?

Well, you only have limited information in limited occasions where dealer checks 10 and mispush Ace button. The basic strategy is to hit anything until 20 if dealer has 20 and surrender not offerred. You should definitely double down with 10/11 if dealer's hole card is not 10/Ace. I doubt you should double down on anything else (even 9). You should stay 14+ if hole card is not a face. 14 is a marginal case and you should hit when count is negative and stay if count is positive. BTW, you biggest gain is staying 16 when you know dealer does not have 20.

If surrender is offered and dealer has 20, you should surrend all hard hands but 10/11. Also 12 vs 20 is a much stronger hand than say 19 vs 20. If count is negative enough, you should hit 12 rather than surrender. For soft hand, I do not have an answer for you now. Intuitively, you should hit AA, A2, A3, and maybe A4 and surrender A5-A8. Do not split anything even AA.

Hope it helps.