A co-worker who had worked at the 3M plant at the time told me this story in 2010. I emailed him, he knows David Swenson so maybe I can get David's opinion on the article.

Note that the amasci.com article is about David Swenson's conference talk about the phenomenon, here's the copypaste:

http://web.archive.org/web/19961226041803/http://www.att.com...

   SESSION 7: SPECIAL SESSION, 17th Annual EOS/ESD Symposium
   THURSDAY, SEPTEMBER 14, 1995, 8:00 am
   
   SESSION 7: SPECIAL SESSION: ELECTROSTATIC CONSIDERATIONS IN INDUSTRY
   
   MODERATOR: D. Swenson, 3M
   
   7.7 CASE STUDY - LARGE PLASTIC WEB ELECTROSTATIC PROBLEMS, RESULTS AND
   CURE, D. Swenson, 3M Company
   Tremendous static charge generation on a plastic web causes unique
   physical phenomena and special problems. Solution was simple and cost
   effective.

The real question ...was this "star trek physics," or really just a human-nerve TENS effect; temporary muscle paralysis caused by static discharges all over the victim's skin? They never threw a baseball down the tunnel to see if it halted.