shove or fold?

[Wishwash420]

here's the scenerio

late in a live tournament, 13 players left(out of 78), top 8 get paid. Blinds are $2k-$4k w/ 300 ante (7 at table). $8100 in pot pre flop. i have below average stack of about $18k. Everyone is playing super tight as we approach the bubble. Blind stealing was very easy as no one put up a fight, for fear of getting knocked out.. The previous time i was on button i pushed and the blinds folded, i showed 2's. This time, it folds to me on button and I have A2o. chip leader was BB and I had SB covered. I shove, and get called by SB, who only has 15k left. he has 66. gg me after that. Now my question is, was it wrong for me to shove there? should I have folded? And was he right to put his tourney life on the line w/ 66?