Garaging address for car insurance across from actual garage

I live in a city and don't have parking in my building, but I park in a garage across the street with a different address. Eg., if my address was 12 Street St, the garage would be 13 Street St. Most people in my building park there.

I recently bought car insurance with Allstate. The Allstate website won't let me set my garaging address as different from my residence. So, I set my garaging as 12 Street St. Is this worth calling Allstate about or am is this all normal and I'm fine?

This is in Maryland, USA