Received a "Sorry We Missed You" card taped to my front door (second one today).  We are new homeowners in the last 6 weeks.  The company name on the card is "Compass".  It had my last name (handwritten) along with the address (handwritten) on the card.  There are phone numbers for both Austin and San Antonio listed, along with a confirmation number to give when you call.  We are not expecting any packages, and there is no other business info listed on the card - such as an address or website.  In today's market, any legitimate delivery business would provide a website/physical address for you to follow up.  

From what I've read on this site from others, this is a marketing scam akin to reverse telemarketing.  Just throw away the card and don't waste your time.