I thought it was helvetica too, so that is what I showed the client I'm working on the project with. Maybe something a little more "boxy" but still similar to Helvetica?

The drafting font that is in Neutraface might work.

There are also a number of drafting style fonts that also imitate hand lettering like Adobe Tekton; Letraset Stylus, Harvey or Enviro; Font Bureau Graphite; and even oddball Farfel Pencil from Image Club.

That's a lot like Helvetica.

Are you more interested in the forms behind the noise, or do
you want a font with noise?

Boxy, but still similar to Helvetica

Phil Martin's Heldustry was designed specifically to meet that need.