As someone who went though lengthy (10+ years) immigration process, from student visa to work visa to Green Card to Citizenship, with extensive travel in between - there is nothing particularly unreasonable about the experience described. OK, so he was delayed for a few hours, due to some error or inconsistency in the USCIS database... There's no reason to freak out.

And the condescending remarks about the officer not knowing the difference between "web developer" and "software developer" were unnecessary.