Trooper Steve was asked by Johnathan, “If there is no sign posted, is there a minimum or maximum speed limit?” For example, what if you’re on a rural road and no sign is posted for miles?

OKLAHOMA CITY (KFOR) — The image posted by Oklahoma Governor Kevin Stitt showing a 100 mph “tribal speed limit” sign was a “meme,” according to the governor’s press secretary.

In contrast to a standard sign, which has the mph figure encircled by a red border, these versions have the number surrounded by a green circle. Underneath the words "advisory speed limit" are ...