I found that rubbing with a cloth vigerously will eventually take up
the glue. Its seems that it isn't chemically bonded (fortunately for
me). They proposed coming back with a high speed buffer and going over
the entire floor until the spots are gone.

Its a shame that some folks who do this for a living aren't more
familiar with their work. Needless to say, I'm losing sleep over this
job.

Do you have any names or contacts for the specialty products your
referred to?