Agree with others who've suggested that you not go back to the shop that you're uncomfortable with. Otherwise if you have fit problems you'll always wonder if they didn't measure you correctly and you'll kick yourself. The Gunnar is too nice a bike to get one that does't fit.

YES, call Gunnar and get their opinion on fit and even if you have to drive two hours to a shop that does a LOT of fitting and comes recommended...it will be worth it.