I'd wager the initial greeting works, but I question whether the person's lack of self awareness (when it's clear that the customer doesn't have time to do smal

I'd wager the initial greeting works, but I question whether the person's lack of self awareness (when it's clear that the customer doesn't have time to do small-talk and has been evading you for 3 weeks straight) wouldn't be grating to most people who are trying to evaluate several products and get some work done.