95 3rd street 2nd floor san francisco check in mail

It looks like you're providing an address and a request to check in via mail. Here's a breakdown of the information:

• Address: 95 3rd Street, 2nd Floor, San Francisco
• Request: Check in via mail

To process your request, I'll need to clarify a few things. Are you trying to:

1. Check in for a hotel or accommodation at 95 3rd Street, 2nd Floor, San Francisco?
2. Receive a package or mail at this address?
3. Confirm the address for a specific purpose (e.g., business, event, or meeting)?

Please let me know which option applies, and I'll do my best to assist you.