That really happens, believe or not. Regardless you finished busted, I will play pair of aces or kinds all-in pre-flop no matter what my opponents hold. For aces I will be leading in best case 9:1 which will lead mostly to double-up. Never fear elimination, it is just still only a freeroll. Playing all-in aces/kings (pocket pairs) is nearly always the good choice. Wish a good luck. If you worry just call and see flop firstly. Make an all-in decision on river if you won't be sucked out.