SNG senario - bubble play

[Stealthy]

Only play SNG's as an occasional break for cash games so sorry if this is very basic.

This did occur in my last SNG but is very much general strategy as well I guess.

Turbo SNG final 4 and I had been the chip leader bet after a couple of unlucky mistimed hands and doubling the shortstack up I ended up back in the pack. Blinds are huge and there is no post-flop play now, around 250/500. The guy to my right is playing very well and once the blinds picked up he became super agro, he now has >1/2 the chips in play and is shoving every other hand. The guy to his right is still being very nitty and would rather blind out than play a less than stellar hand. Previous orbit he had 700 left in the BB and had to go allin for 200 more and his rags doubled up.

I have 2800 in chips (SB)
BB has 2200 in chips
CO has 1100 in chips
Button has 7kish

Button shoves again I have A9o and am WAY WAY ahead of his range which is any 2 but UTG is about to bubble anyway unless he gets lucky again.

Easy call?
Easy fold?