From the NFHS rule book - rule 4-41-6NOTE-
"Pivot-foot restrictions and the travelling rule are not in effect on the throw-in'.
The NCAA rule is the same. Click on the link below, and then click on the on-line NCAA rule book- "Mens and Womens Basketball Rules and Interpretations". Then look it up in rule 4 also. If an official used the travelling signal for the violation of moving outside the 3-foot wide throw-in area, then the official was technically wrong.
http://www.ncaa.org/library/rules.html
Pay up, Doug.