I realize this is an old question, but on the off-chance you haven't already found it, the interview in question appeared in the March 8, 1982 issue of InfoWorld. You can read the whole thing here:
Apple's Steven P. Jobs talks to IW
> We didn't have much money to make molds. So we hired an outfit in Mountain View. [...] It got so bad at one point that we decided the outfit wasn't interested in supporting us, so we went down there and some of us kept the guy busy while the rest grabbed our mold real quick.
It is important to keep in mind that Jobs was well known for his embellishing flourishes of bombast and hyperbole when recounting a story, so the wooden mold "grab-and-dash" may be partially or entirely apocryphal.