We report magnetotransport evidence of a hybridized Weyl semimetal (WSM) Fermi arc/topological insulator (TI) surface state at the interface of a ferromagnetic Mn₃₊ₓSn₁₋ₓ/Bi_(0.85)Sb_(0.15) heterostructure. High target utilization sputtering (HiTUS) was used to grow polycrystalline Mn₃₊ₓSn₁₋ₓ films and Mn₃₊ₓSn₁₋ₓ/Bi_(0.85)Sb_(0.15) heterostructures on thermally oxidized Si/SiO₂ (100) substrates that exhibit the negative coefficient anomalous Hall effect (AHE) resulting from topological Weyl node transport. When various defects and impurities are introduced into these Mn₃₊ₓSn₁₋ₓ films, a ferromagnetic (FM) phase develops that practically eliminates the topological Weyl node conduction. These FM Mn₃₊ₓSn₁₋ₓ films exhibit large exchange bias effects below T=200 K that we attribute to the coexistence of a FM phase and the triangular antiferromagnetic (AFM) WSM phase. When Bi_(0.85)Sb_(0.15) overlayers are grown on the FM Mn₃₊ₓSn₁₋ₓ, the magnetotransport signal of Weyl node topological transport is restored, an effect we do not observe when replacing the Bi_(0.85)Sb_(0.15) TI with heavy metal overlayers. We attribute the restoration of the Weyl node topological transport to the formation of a hybridized topological state at the WSM/TI interface.