The only difference between a smoking room and a non-smoking room in a Motel 6: whether or not the ashtray is flipped upside down.

As Terrell wrote This Is Broken:

I entered the "non smoking" room at a Motel 6 in Sacramento, California, only to find an ashtray. So I called the front desk to complain and was told, "Oh, just turn it over, now it's a non-smoking room!"

Genius!

"Non-smoking" hotel room [This Is Broken]