Sexton wrote back, saying "I'm not missing," according to the post.
Police asked Sexton to contact them by telephone, and he did, KNST reported. The welfare check then turned to a search for Sexton because of the outstanding warrants, the television station reported.
"Tell 'em (I'm) fishing at Rocky Ford (if) they wanna talk or somethin'," Sexton wrote in a later post.
Police said they eventually received a tip as to Sexton's location and arrested him Tuesday, KNST reported. Sexton is being held in the Riley County Jail on a felony warrant for probation violation with more charges pending, the television station reported.