I got pulled over once because I'd been in the middle school parking lot (had dropped off son before officer was on scene).
Long story behind it--
Middle school parking lot has a clearly marked entrance and exit. At the time, where I worked put the middle school on my way to work (the hospital has since moved, I still work there but now go in the opposite direction), and middle son wanted me to drop him off. Well, when I pulled into the lot, I was following a light brown sedan, and there was another car parked (or so I thought, turned out to be occupied) where the other car was almost half blocking the exit. Middle son liked to be dropped off at the end nearer the entrance, the brown car pulled up to the other end and dropped off their child, and then squeezed out the exit (and you could tell they were maneuvering to do so). Well, I thought that surely if someone was in the car, they'd think about the fact that they were blocking the exit and move. I waited about as long as I dared (needing to get to work, after all), and then thought, "ok, they're parked, brown car got out, I'll be able to". Only to get up there and find that brown sedan was smaller than my sedan and it was just too tight a squeeze for my comfort, so I shifted into reverse just as the car door opened and the kid got out (10 minutes after I came into the lot! I had a clock in the car, I am not exaggerating) and ran behind my car. FINALLY, idjit-SS-parent moves. SRO had arrived just at the very tail end of this (to see me shift into reverse when I realized that I couldn't squeeze the gap even though I didn't *move* in reverse) and followed me for a bit, then pulled me over.
While he agreed that the other person had really made things difficult (and if he had a do over on the choice of who to follow, he would've ticketed the parent for obstructing the roadway), he had gotten curious because my car is registered to an address 200 miles away and wondered what someone from so far out of town was doing in the middle school parking lot. Explained that it was a relic of a really baaaaad divorce--when my ex took the only reliable working vehicle, my dad bought me a car, but to protect it from being considered an asset, my dad owns it, and we just never have bothered to legally change the ownership. That made total sense to him, and so that was the end of that (at the time, too, the state of the divorce was not yet final although the only thing pending was the judge's signature on the final paperwork).