Shopify added the ability to customize the logo based on location. We don't use this feature but maybe it can help you. 

Similar problem that would be a great solution. We have two problems. Taxes are broken down into multiple line items for city, state, municipality etc. No retailers do that here and it causes endless problems with a sale.We have multiple store locati...

It's been over 2 years and still the same problem in NYC this is a nightmare cause of the 3 levels of tax. People always see a combined single line item for tax and they feel they are being overcharged. Giving each person a math lesson is frustrating...