Top Two--all in by mistake

[Steverino2]

Noble Poker 11 SNG

First lap--Blinds are 10/20--
two limpers and I raise to 80 w/ AKo--SB and one limper call

Flop is A K Q two diamonds--pot is 250--I type in 250 to
bet the pot, but hit the all in button instead by mistake- SB calls with JT for the flopped str8--and I don't improve--OUT

If I had bet the pot as intended--can anyone fold here to
a big raise either on the flop or turn?? Is a pot sized
bet too large with this flop??