NL10: AA OOP slowplay 3Bet pot

Poker Stars $10.00 No Limit Hold'em - 5 players - View hand 1868851
DeucesCracked Poker Videos Hand History Converter

BTN: $9.20 - VPIP: 36, PFR: 19, 3B: 4, AF: 1,1, Hands: 90
Hero (SB): $10.79 - VPIP: 22, PFR: 19, 3B: 5, AF: 4,6, Hands: 56532
BB: $10.00 - VPIP: 21, PFR: 15, 3B: 6, AF: 2,0, Hands: 676
UTG: $11.07 - VPIP: 20, PFR: 10, 3B: 1, AF: 1,5, Hands: 187
CO: $10.03 - VPIP: 28, PFR: 12, 3B: 4, AF: 2,4, Hands: 68

Pre Flop: ($0.15) Hero is SB with A A
1 fold, CO raises to $0.30, 1 fold, Hero raises to $1.10, 1 fold, CO calls $0.80

Flop: ($2.30) A 2 2 (2 players)
Hero checks, CO checks

Turn: ($2.30) Q (2 players)
Hero bets $1.30, CO calls $1.30

River: ($4.90) 8 (2 players)
Hero bets $2.80, CO folds

1) what about flop line? Villain probably won't pay us off that often vs a cBet there anyway.
2) What about betsizes? River could have been smaller.