plant should be fine. i have had the same things happen before and they stood right back up. i have had stems almost pinch in half and still live (ofcourse w/ the help of a brace, so they stand straight until they recover)
You can get like a bamboo stake and tie the main branch to it loosely so it has room to grow and it will help support it if it's a smaller plant.
Check out m y grow journal and you can see the stakes in the plants helping them hold up the big buds.