Residents of Redding, California are reporting mysterious letters and numbers drawn in the dust on their automobiles. Some people are suggesting that the codes could be the work of sex traffickers. For example, "2F" could refer to two females and "1F1B" could mean one female and one boy. Police think the markings are weird but [&]

https://boingboing.net/2020/09/03/odd-letters-and-numbers-appear.html