Well, yeah, I think that the 10^4 grams of various concentrated acids and reactive metals and other nasty things needed for a battery, across 10^7 or so personal vehicles, if there isn't a very good program in place to process the spent cells, could cause a very big problem.

Ah, but Google does charge; just not "end users," per se. Any company wanting to advertise on google has to pay for it (and handsomly in some cases, depending on how popular their search keywords are). Google's customer base isn't the people doing the searching - they need those people, but they aren't "customers." The customers are the ones putting ads on google's search pages.

Not in all places... I know in North Carolina, your car will not pass inspection with a cracked windsheild, but you're not actually required to have a windsheild, so you can just take it out to pass inspection.