DES MOINES, Iowa (AP) — A combination of fees and parking difficulties could be prompting many food truck operators to abandon Des Moines and instead rumble off to the suburbs. The Des Moines Register reports the city of Des Moines has issued only three mobile vendor permits this year. That’s down from 15 permits last year and 21 permits in 2016. Food truck owners must pay $1,750 in permitting and parking fees to Des Moines annually and can only operate in specific locations.

That has led some vendors to leave downtown for suburban business parks where parking is free. Kevin Gollhofer says he gave up on street sales from his barbecue truck and has focused on catering. He says people like to see trucks downtown but don’t buy from them consistently.