I would like to use intent (as evidenced by a smirk or such) to call INT. But continuing to run or slide after being out is allowed. In fact Wendelstedt said, before OBR codified DP slides, that "that act alone" of sliding and taking out the fielder when you were already out was allowed by that rule wording. They also allow a B-R to continue to run though 1B after a fly foul is caught and if hit by a throw, lets say from just beyond 1B to double up or get a tagging R3, there is no INT if the runner was running out the play normally or, as clarified with a change, running in one direction or the other that would be normal baserunning.