and there is a whole DU group that discusses the issues of addiction including alcohol.
I expect the brothers were going to be a part of that wedding and had probably been a part of rehearsals and whatnot that day and traditionally, the bride has some kind of get-together lunch/dinner or whatever for the wedding participants the day/night before.
Back decades ago when I as their age, I used to ride my Trek "commuter style" bike (with commuter treads) every weekend for several years from spring to fall, down along the River Drives here in Philly. Had my gear (helmet, biker top and pants, tach on the handlebar, all kinds of flashing lights on the front/back of the bike). I was doing different circuits each weekend along their walking/biking/jogging/blading paths and/or on the street on one or both drives, some weeks a 9.3 mile single circuit from the Falls Bridge, up and around the Art Museum, and down the other drive back to the Falls bridge, and other times I doubled up one of the sides for 17 miles and once did a double circuit and a half for almost 25 miles. One of the times I was out there, I got to meet then-Mayor Ed Rendell when he helped to open a new city Rec center right there behind the Art Museum and got some free hotdogs!
The city has tried to make strides to accommodate bike riders on both trails and on the streets, and as long as they follow "the rules of the road" (i.e., not blowing through stop signs or red lights and not forgetting to signal turns as I have seen far too many times), they ARE permitted on the road (and in many municipalities NOT allowed on sidewalks with pedestrians for the purpose of them going on the road).
And from what I understand, there is no ordinance in that town for DUI for bikers. You don't expect that kind of issue on a country road. But then you don't have to be on a bike to have the same thing happen walking along a country road with no sidewalk. Ask Stephen King.