This is not "unintentional contact with an official." (Don't even know what that is...it is not an NCAA term.) This is two things: 1) a person subject to the rules in the restricted area while the ball is in play (the 5/5/15 succeeding spot scenario) and 2) interference with a game official while the ball is in play (penalty the R deems equitable, with guideline to make this 15 and a first down at the succeeding spot). We'd flag 2) interference, penalize 15 at the succeeding spot, and signal unsporstmanlike conduct, followed by the sideline interference signal.