Back to the 70s

The other day I saw this in the parking lot of a grocery store:

I laughed out loud and wondered if I'd suddenly been transported back to the 70s.

For those of you who weren't alive in the 70s, this message was seen on lots of vans in the 1970s that had shag carpet and a mattress in the back.  The "ride" is in reference to hitchhiking.

What's a hitchhiking?  Something else that's been on the decline since the 1970s.