From poking around in the source code I found this 282M SQLite database:

  wget https://services.arcgis.com/xOi1kZaI0eWDREZv/arcgis/rest/services/NTAD_North_American_Roads/FeatureServer/replicafilescache/NTAD_North_American_Roads_3862439624850511818.geodatabase

I can't figure out how to read it though. I get this error:

  Connection to NTAD_North_American_Roads_3862439624850511818.geodatabase failed check: no such module: VSRS

As far as I can tell VSRS is a proprietary Esri thing.