. >> reporter: a few years back our dear friend bill geist found drive-thru weddings.ve-th drive-thru funerals, and more. so much more. >> here's one a lot of people can't even believe. >> can i help you? >> bourbon and water and a martin i straight up with a twist. >> reporter: it seems that there's no business that can't be done out of a drive-up window. >> martin i straight up. thanks very much. >> have a good day. >> seeing drive-thru confessions for churches, drive-thru animal adoption centers. everyone is kind of adopting this model to make this businessness go. >> reporter: adam chandler is the author of dhru dres. >> it doesn't exist as a culture. drive-thrus and fast food, the way ite else in theworld. >> reporter: driveu it existsute >> reporter: and that flavor sells. according to a recent study, fast food restaurants take in about 70% of their income through that little window. and now the pandemic has made it the only game in town. >> drive-thrus are how hospital workers and truckers and families are getting fed right now, and so it's actually how the coun

. >> reporter: a few years back, our dear friend, bill geist, found drive-through weddings, drive-throughuch more. >> here is one a lot of people can't even believe. >> can i help you? >> bourbon and water and a martini straight up with a twist. >> reporter: it seems that there is no business that can't be done out of a drive-through window. >> thanks very much. >> seeing drive you through confessions for churches, drive-through animal adoption centers. >> reporter: adam chandler is the author of "drive through dreams." >> it doesn't exist the way it does here anywhere else in the world. >> reporter: the drive yodrive-through is uniquely american? >> yes. and with flavor. >> reporter: and that flavor sells. fast food restaurants take in about 70% of their income through that little window, and now the pandemic has made it the only game in town. >> drive-throughs are how hospital workers and truckers and families are getting fed right now. and so it is actually how the country is continuing to move. and that's important to note, too. >> reporter: but whether you're selling burgers or booze