Interesting idea. How many store staff work within a few minutes commute of their employer?
What does that have to do with anything? That's a 7 hour shift and a 3 hour shift. Add on opening and closing and that's an 8 hour shift, easy enough to sort out between the full time and part time workers. Either way it's up to the shop to do it. They can easily just open earlier and shut earlier or open later and shut later...