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Identifying vehicles within parking zones yields valuable insights into the spatial and temporal distribution of parking spot utilization. Because parking monitoring is conventionally conducted through manual observation, its temporal granularity remains restricted by substantial personnel expenditures. This study leverages simulated datasets alongside transfer learning to construct a dependable, real-world model tasked with detecting and categorizing vehicles via single-beam LiDAR within a roadside parking context. This work introduces a synthetically augmented transfer learning methodology designed for LiDAR-centric vehicle detection, alongside the deployment framework for synthetic LiDAR datasets. A synthetically augmented transfer learning technique was implemented to expand the constrained real-world dataset and facilitate the formulation of data management workflows. Furthermore, incorporating this synthetically augmented transfer learning methodology enhances both the resilience and the overall precision of the network. Empirical tests demonstrate that this approach enables the rapid deployment of models tailored for vehicle detection using a LiDAR sensor.