Playing in a live 1/2NL game in a local casino. I've been playing tight-passive for 3 hours because my cards are running bad. Even a bunch of $2 limps go nowhere. Anyway, just wondering if there was a better way to play this?

BB: Aggressive, bets into me every hand I play, $1200 stack
EP1: Aggressive, hitting on the river a lot, $2200 stack
EP2: Unknown, $100 buy-in stack
Button: Hero, $195 stack TPP and everyone is well aware of my folding

Most hands are either everyone limping or 3-4 players in for $7-$17 each PF. Lots of straddles going on.

Situation:
EP1: Raise $17
EP2: Call $17
Hero: Pocket A-A, Call $17 (not to arouse too much suspicion)
BB: Call $17

Flop: A-9-3 rainbow

Everyone checks to me and I check fearing no one calls. I still believe that at least 1 of the 2 aggressors will try to steal on the turn if another low card shows.

Turn: 6

BB: Bets $25
EP1: Deliberates a long time, calls $25
EP2: Folds
Hero: Calls

BB sits quiet and EP1 goes nuts asking if I'm using my ultra-tight image to bluff

River: Q, no flush/straight possible

BB: Checks
EP1: Checks
Hero: I bet $20 for mostly for value, but partially hoping either would try to come over top of my weak bet.

BB: folds
EP1: Surprisingly calls $20 considering I haven't played a hand past the flop in over 1.5 hours. He didn't show but my guess was he had top 2 pair, maybe with a backdoor flush draw.

I net $118...

My question is: would an all-in move have looked like some sort of bluff that could possibly get called or is it just completely saying I've got a set of Aces? I figured getting another $20 into a ~$140 pot that he almost has to call is better than making him fold...