In the following video; https://www.youtube.com/watch?v=NrgVYPkkqX0
An individual is sitting in front of a home when a service call about a "suspicious" person/vehicle is made. The police respond and begin to ask the person a few questions which the person refuses to answer. The individual lets them know that he has a legal reason for being where he is. Unbeknownst to the cops, he is an insurance adjuster. They arrest him for "obstruction" for not answering questions.
Is it legal to arrest someone for obstruction for refusing to answer questions?