All I know is, in the police report page 23 Kenneth stated "HE ALSO NOTED THAT DANIEL'S SHOES WERE NOT TIED." (caps due to direct copy and paste) but the widely publicized picture of him (example here
https://thelambdas.org/wp-content/uploads/2021/07/HELP-US-FIND-DANIEL.png) has the brown work boots tied.
MOO it might be reasonable that Ken noted the untied laces correctly and that DR had untied laces for the remainder of the day. If he was wearing the same style pants he would have had to take the boots off before the pants anyways.