-So don't be a target by taking your original 1st gen Camaro to car show...
Ironically, car shows seem to be the safest place. Hood up, windows down, and nobody near their own car. I was thinking more along the lines of not handing your business card with your home address to a stranger right after telling him that you keep your prized Camaro in your garage and that you'll call him when your family gets home from a 2 week vacation.
I like the blocks idea. I think I'll use jack stands instead because they look better for a car show.
Seriously though, by practicing a few simple things, it isn't hard to feel comfortable driving and parking many places. If they really want it, they'll figure out a way to get it and there's not much to do if that happens except be prepared with good insurance and possibly a way to recover it.