mourning aveilus - If someone needs to shave during Sefirah or Three Weeks because of work, should he also shave before Shabbos?

If someone needs to shave during Sefirah or Three Weeks because of work, should he also shave before Shabbos?

It seems strange to shave for M-F, but to go into Shabbos with stubble. On the other hand, there's a dispensation for his job, so that might just be how it turns out.