The bed and breakfast may or may not have on site parking. Some of the historical districts may only have street parking or very limited covered parking. If you are concerned about keeping your vehicle in a garage phone ahead and see if one is available.
If you travel a lot great idea is to keep a record of the bed and breakfasts that you stay in as well as a general comment about the accommodation. That way when you travel back, you have your own personal travel guide filled with personal feedback about the accommodation and points of interest.