river call- automatic?

[bigt2k4]

been a terrible day... anyway here's the hand NL 200
Hero Qd9d on button
MP(not much info, played for awhile havent seen anything too wild) min raises to $4, CO+1 calls, CO calls, hero calls, SB calls, BB calls
(Flop KcQs2h), MP bets $2, CO calls, Hero calls, SB calls, BB folds
(Turn Qh) MP bets $4, CO calls, Hero raises to $16, SB folds, MP reraises to $28, CO folds, Hero calls,
River 9h, MP pushes for $160, I have him covered,
Hero???
the min bets made me hesitant to call his all in, but he could be open minraising 22, KQ or KK, I dunno if call here is standard