The Instagram “influencer” problem is only getting worse. Two days ago, we shared an email exchange between a pair of wedding photographers who ran afoul of an influencer who wanted a free wedding photography package. Now, a famous LA Ice Cream truck has gotten so fed up, the owner has officially started charging so-called influencers double when they ask for free stuff. The CVT Soft Serve truck is an LA institution with a 15-year history, but its reputation comes with…