i was once reported driving very safely and courteously, a first at my company.
my other favorite was "driving like a maniac, changing lanes erratically, travelling west." most complaints are bogus, easily dismissed as driven by hatred for the cable company, but this was oddly specific.
me: is travelling west what finally gets me fired?
boss: don't be a smart ass
me: what if i told you it was a north-south road?
boss: ummm
then i took him to where my maniacal lane-shifting took place and sure enough, due to construction the lanes shifted waaaay over to the left and waaaay over to the right. i'm just glad he didn't ask why i was there instead of where i was supposed to be 😛