How many would go and buy new outfit in that situation?
I have done similar, I had to do some work on Portland OR, I was out of Sacramento CA. As I arrived in Portland I suddenly realized that I had all my work related equipment; but no clothing except what I was wearing. Stupid things happen
As far as commuting goes, I just wear my work clothing on my commute; but then, it is just a couple of miles. On the way to work I use the "e" in e-bike a bit more than I do going home. . . yes, I know, an e-bike . . . some here will say that I should drive instead; however, I choose not to.