If it's a relatively busy sidewalk and you know the object has been there for several hours, that gets to be a pretty good argument.

In this case, the economics of solar has been changing rapidly in recent years, so the caveat won't apply. Worst case, you can bend over and get a closer look.

Yeah, presumably the Software Engineer laughs at the two moronic "experts" and picks up the religious literature or strip club ad masquerading as cash.