A man was robbed at gunpoint early yesterday morning in what Henrico County police are calling a highway robbery. The robbery took place about 1:45 a.m. after the victim drove up to a bank machine at the Shoppes at CrossRidge, off Staples Mill Road north of Hungary Road in Glen Allen. The bank machine wasn’t working, and the man drove out of the shopping center, said Henrico police Lt. Doug Barker.