Mine has this issue about half the time and Costco is the worst. Something about their nozzle design exacerbates the issue.
I'm successful with starting out slow for the first $5 or so then going to full speed. I tried the "sweet spot" method and usually can't find it.
I've read of several issues that can cause this which run the table for repairs (none, filler neck, gas tank, support systems).
Mine's at the dealership now for a cracked rear window and I'm having them check out the filling issue. I'm not confident they will reproduce as they are only going to add $20 at one station to test it.