Way back many, many years ago, I used to work one of those ice cream bikes over the summer. I always made sure that I swung by the local industrial area. Talk about instant sales! Thing is, after a few weeks of doing this, I had a very tight schedule in that area. Business' don't tend to like it when their employee's go running out off the floor whenever they feel the urge. So I started showing up just before break started. That solved a lot of the problems.
When guys would ask me to stop by, I'd have to give them my boss' phone number so they could be added to the 'route', with their break time slotted in. Likely, this is what's going on with this fellow, too. As others have suggested, call the company and suggest that they stop by. They will only do it if it's profitable, so suggesting a once a week thing unless you feel 'the guys' would support a once-a-day schedule is most likely.
