Ask her if you pass in an automatic hgv can you then drive a geared hgv and see what she comes up with for this 
I once had one tell me it was illegal NOT to have a HGV sat nav 
Ask her if you pass in an automatic hgv can you then drive a geared hgv and see what she comes up with for this I once had one tell me it was illegal NOT to have a HGV sat nav