3 bet by a TAG preflop - what's your plan?

[mack848]

Party Poker 2/4 Hold'em (10 handed) converter

Preflop: Hero is MP2 with A[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#666666">4 folds</font>, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">MP3 3-bets</font>, <font color="#666666">4 folds</font>, Hero calls.

Flop: (7.50 SB) 5[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero ??

Villain is certain to auto-raise if I bet and I thought at the time he would auto 3 bet a check raise - he had a post flop aggression of 3.5.

Given his 3-bet range, check/fold right?