Not worth your time, the way the airbags work is more or less on a pendulum switch for lack of a better way to describe it. If they were required they would have blown, but its all based on a X speed - 0 mph or 0 mph - X speed. If you don't meet that requirement (per the sensor) it won't deploy. I've seen bigger hits on trunks where bags didn't deploy ****, we had a front end on a yukon where the frame was shoved over almost a full 2ft and the bags never went off. Just because you get a big front end hit doesn't mean they will deploy or that something is wrong because the didn't. You can certainly hire a lawyer and go through the process but you will not win or get anywhere with anyone. I've seen that play out a few times and I've only ever seen people lose their fees to whatever person they hired.
EDIT: Quick side note, if it fixes and you stop the repair, STF will NOT pay for a rental while you get it sorted out. Depending on the shop you choice whether DRP or not, they will be given a time limit based on hours/part availability, most cap out at 30 days or around $1000 whichever comes first.