Kind of already doing it. Writing them tickets for taking their DOT breaks or waiting to be reloaded. One article here:
https://www.lawenforcementtoday.com...ited-while-they-sleep-along-brooklyn-streets/
From that article it sounds like that is a common everyday thing having little to nothing to do specifically with the pandemic. Happens here in Henry County, the residents hate the trucks parking on side streets and they've been complaining about it for years.