You seeing no evidence of it firsthand != A refutation. It's a globally decried phenomenon unique to the American Police Forces.
https://www.brookings.edu/articles/how-9-11-helped-to-milita...
https://apbweb.com/2023/10/the-use-of-military-assets-by-u-s...
https://www.theguardian.com/world/2020/jun/05/why-are-some-u...
The driving force behind it is this LESO; established to facilitate the "1033 Program", which transfers excess weapons, equipment, and vehicles from the United States Armed Forces to civilian law enforcement agencies.
https://en.wikipedia.org/wiki/Law_Enforcement_Support_Office
From 1997 until 2014, $5.1 billion in military hardware was transferred from the DoD to local American law enforcement agencies. 1/3rd of the equipment was brand-new.