ArcBest’s ABF Freight unit is expanding its electric trucking program with new Tesla Semi trucks beyond its initial California and Nevada pilot route. This move shifts the Tesla Semi use from a limited trial to broader deployment across more of ArcBest’s network. Early feedback points to a positive driver experience and solid operational performance for the electric trucks. For investors following NasdaqGS:ARCB, this development adds another piece to the story around how the company is…