RE: dryfire sucks
I've done it with my Exocet, that was a year or two ago and no problems. I've seen a friend do it with his Barnett and he broke a training wheel off right then at the shot.
I think you should definately give it a close inspection, but if it was dead on immediately after the incident its probably fine, us Canadians know how to build a bow. One tip someone gave me here when I posted a similar thread was to run a cotton ball over your limbs, any cracking or flaking should pull pieces off and make the flaws easier to find.
Good luck