Google policy states that a company must have a physical presence in a certain location in order to appear on the list. If they have a mailbox for an address or are listed in their mailing address, that is, the UPS store, but they do not have a physical presence at that location, they are not allowed and should be removed. Google has guidelines for representing your company on Google, as well as specific rules for companies in the service area. For your Google business account and your local ad, there's no reason to show a UPS store address as your business address.
The reason Google doesn't allow you to use a P.O. Box, virtual office, or email service address like those of a UPS store has to do with spam from Google listings and spam from Google Maps, especially with fake ads. Service area companies don't have physical locations that customers can visit during published business hours. Set up your Google account with your home address and follow its instructions for service area companies.
When you are going to create your Google business account and request or add your local ad to GMB, enter the address where you receive the email, as long as it's not a P.O. Box. If your business is one of these, your address will be your company's physical location in most cases. Google doesn't allow a UPS email address to be used as a business address, and since Google changed the way service areas are defined, there's no reason to be tempted to do so.
If your small business is one of them, you might be wondering if your business address should be your home address or something else. Google doesn't allow you to include home addresses or virtual office addresses in its local business listings and may suspend your ad if you don't comply with this fundamental rule. These companies will also provide their customers with a business address similar to the type of address that a mailbox service could provide. However, when you are going to complete your business profile, don't include it as your business address in your company's advertisement.
If your business is a store or a different type of business with a physical location, then your address will be that of the actual business in most cases and not your home address. Companies with storefronts, private clinics or offices where customers can make appointments or show up during regular business hours are examples of this type of business.