In Riley v. County of Broome (263 AD2d 267), the Third Department has explored in meticulous detail the background of and several amendments to Vehicle and Traffic Law 1103 and 1104. While acknowledging that the two phrases of the first sentence of section 1103 (b) make that statute ambiguous and confusing, the appellate court found considerable, and persuasive, reason to conclude that the Legislature did not intend to distinguish between "vehicles at work on the highway" and "hazard vehicles."