so, JP says don't worry, and 5Star says what I did wasn't good, but there probably isn't enough in the residue to worry about, but they can't say 100% certain. he also says he doesn't advise wasting good beer.
I drank another bottle the other day and am still alive

I have a friend who works in a chem lab who offered to run a sample testing for zinc, so I'll be doing that just in case.