I say this as someone who is not fond of the protests during the national anthem and as someone who used to be a big fan of Pence, before he signed on with Trump.
I remember when people booed when Pence walked in to watch the play "Hamilton" shortly after the election and Pence could be overheard telling his daughter that "that's what freedom sounds like." Well, Mr. Vice President, I may not like it, and you may not like it, but players quietly protesting during the national anthem is what freedom looks like.