It has come to my attention lately that a number of cars in the Pocket and around Freeport Boulevard have license plate frames displaying the following:

KA 4993

What does it mean? Is it someone’s initials and last 4 social security digits? Is it the number of people Killed in Action in South Sacramento (no wait–that would be KIA and the number would be higher)…? Is it the equivalent to a secret handshake? Is it the code to a Swiss bank account? Maybe it’s something I have to program into TiVo to be shown the truth, the light, and the way?

Does anyone know what it means?
UPDATE: Big thanks to RAH62 (see comments) who posted a link to a board that suggests KA4993 is a call sign for CHP. I feel so much better now that I’ve been following so many cops or cop family members. Thank goodness I haven’t tapped any of their bumpers by accident!