£600 GTD BH Tournament, near bubble, should I have folded?

EvilPingu

Ended up going out in 43rd, top 40 got paid. Had already taken 3 bounties early on so was freerolling. Should I have just folded, shoved later in that orbit by which point the bubble would've probably burst and at least guaranteed myself a £2.44 min cash? I know I probably wouldn't even be posting this hand if I'd won, but that's not the point.

Was gutted with the river, thought I'd hit runner runner and won the pot, then noticed he had the nut flush. Sigh.

Player	Action	Cards	Amount	Pot	Balance
EvilPingu	Small blind		400.00	400.00	3840.00
dog8dog	Big blind		800.00	1200.00	8242.50
	Your hole cards	K 2
hendo75	Fold
xandineilx	Fold
poker69	Fold
mordrigaar	Fold
EvilPingu	All-in		3840.00	5040.00	0.00
dog8dog	Call		3440.00	8480.00	4802.50
EvilPingu	Show	K 2
dog8dog	Show	9 A
Flop
		A J 3
Turn
		K
River
		2
dog8dog	Win	Flush to the Ace	8480.00		13282.50

Unknown

Shove is fine, ul he had a hand that could call. Hit offsuit 2 next time.

rancid

shove is ok, you need the blinds
consider - do you want the blinds enough to risk losing in the unlikely event that they wake up with a hand that they can call with and will be beating you

reverse that when you want to double through, only shove when the likely event will be they call with worse