holy sht man all things considered it seems you guys got really lucky.....im envisioning the guy getting out of his camry seeing you with a bloody rag on, and your wife passed out behind the wheel with the engine red lining .If i was him damage or no ild say good day an get the *** out of there lol .......also The best advice i can give you having had a few run ins with power tools,an stupid drunk nights myself an been on the losing end .....see a plastic surgeon not for vanity purposes but they usually are the best for stuff like that special when potentially dealing with nerve damage.......long story short when i was 21 i may have tried to open a beer bottle with my hand the not so intelligent way got a 3 inch gash in my hand an a 2 inch gash that went to the bone, i went to the dr 2 days later when i realized it wouldnt heal on its on ,an they refered me to a plastic suergon. They said i had potential nerve damage the guy was a god send he basically saved my hand an stitched it up perfectly......i was told a regular dr wouldn't have see what he did an i would have lost some functionality in it without being properly corrected. ....i hope you a speedy recovery man take it easy, an you got a pretty awesome wife that risked passing out behind the wheel to get you to a hospital thats pretty awesome of her . Get better soon man an good luck with everything