Parallel construction isn't the theoretical stuff of paranoid hackers on online message boards. In a 2013 statement, it was revealed that the DEA uses parallel reconstruction "almost daily" to build criminal cases using evidence gathered by the NSA.
It seems very unlikely that anybody parallel constructed anything here, since an officer was able to see the guns with the assistance of a visor made of his fingers.
https://www.reuters.com/article/us-dea-sod-idUSBRE97409R2013...