First orbit around table, so no reads on villain in the hand. I had another window open and went to click the table and misclicked raise with A2o in the BB. I wanted to fold the hand. Then the flop came out. What should I have done in this hand?

PokerStars No-Limit Hold'em, $0.02 BB (6 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($2.82)
SB ($1.67)
Hero ($3.50)
UTG ($2.72)
MP ($2.94)
CO ($5.25)

Preflop: Hero is BB with A, 2.
UTG raises to $0.06, MP calls $0.06, 1 fold, Button calls $0.06, 1 fold, Hero raises to $0.1, UTG calls $0.04, MP calls $0.04, Button calls $0.04.

Flop: ($0.41) A, T, A (4 players)
Hero bets $0.3, UTG raises to $0.6, MP folds, Button folds, Hero calls $0.30.

Turn: ($1.61) K (2 players)
Hero checks, UTG bets $0.2, Hero calls $0.20.

River: ($2.01) 3 (2 players)
Hero checks, UTG bets $1.82 (All-In), Hero really hates the fact that he misclicked now.

As played, fold the river. You have no idea where you're at and I'm guessing no read on the villain.

I would have either reraised or check raised the flop. If I don't get the villain to fold, my hands probably no good and I can dump it.