I’d say from the “Brown” commercials, and some observations above, that “Brown” is more focused on business-to-business customers, who need shipping services and spend the workday on their own business, rather than on that of an employer.
That being the case, I question the wisdom of retail businesses, whether online or by mail, who use UPS and subject their customers to the inconvenience noted above.
One solution is to get a p.o. box. Most privately operated mailing centers have staff there on Saturdays, so you can pick up your deliveries at your convenience. Ours costs $60/qtr, but is well worth it.