I think you might have gotten away safe and sound. Check out this pic of the unibody, is there any visible damage to the B pillar or surrounding metal?
You can also do a coarse straightness check by comparing the distance between two points diagonal from each other with the same points mirrored (I.e. front left to rear right, front right to rear left). If the measurements are the same the frame is probably straight or barely tweaked. It's an old carpentry trick so it's not perfect, but that's because the machines can get a much more accurate measurement with lasers and computers than your average tape measure.