ToxicWS6

So on the way home from work the other day i had some one pull out in front of me/cut me off, in doing so i hit the brakes hard and when i did i slid into the joint between two roads and bottomed out in the front pretty hard, after getting home i redid my rear swaybar bushings soi had my car tilted forward at a decent angle, well when i pulled it out of the drive way i thought i smelled gas, on the way to work this morning i smelled it again and got some one else at work that smelled it to, also on the way to work this morning my air bag light came onafter acclerating onto a main road, turned itself off when i shut car off and hasnt come back on but could ether the gas or airbag light be from what happen yesterday, what should i be lookin for? I plan on going over the car when im off today but