If you can quote this rule, you would be the first to do so. This is my point. I can find no rule that makes Interference on a force play (no slide) an automatic DP.
Rule 8 Section 4 Article 2 sub-section B. from the 2012 NFHS states:
Any runner is out when he: (B) does not legally slide and causes illegal contact and/or
illegally alters the actions of a fielder in the immediate act of making a play, or on a force play, does not
slide in a direct line between the bases. A runner may slide away from the fielder to avoid contact or
alter the play of the fielder. Runners are never required to slide, but if a runner elects to slide, the slide
must be legal. The force play slide rule can be enforced at all bases, including the plate.
It does not matter if the runner slides or not. It does not matter if the runner runs to right field or the infield. If the runner alters the play in any way, shape, form, or fashion, then the BR is out as well.
This came from the Oregon state rules interpreter.
The onus is on the runner to avoid getting in the fielders way, period.