Very taboo. What do I do?

so i'm playing 5/10 limit at winstar casino in oklahoma and this hand comes up. i'm in the pot with a guy who i can tell is a solid player, and knows better than this. flop is A-high, i bet, he calls. turn is a blank, i bet again, and he folds. so he knows that i'm not just trying to push him around, and maybe to get him to fold a stronger hand later, i show an A, with my other card face down as i throw my cards in. before the dealer can take the cards and reshuffle, he grabs my face down card and turns it up(my hand was A6o, and i really didn't want him seeing my hand). well, i just kind of sit there with this befuddled look on my face, and ramble something, and everyone just kind of goes on with their business. i was so thrown off by what he did, i didn't even know what to say or do, and play pretty much just went on from there with not much being said. the dealer didn't even say anything. i didn't want to make a huge ordeal about it, as i was having a good time, and it was a pretty friendly table, but i don't think that play should be tolerated.
what do you think should be done in that situation?

mflo