Maybe in before the lock....
Back in the 80's, a big motorcycle club held a huge rally every summer in Connecticut. Camping, pig roasts, the whole nine yards. I was working the counter at Dunkin Donuts when they started rolling through town--a solid steady stream of motorcylists two abreast, at least a mile long. Some of them started pulling into our parking lot for a coffee. A couple of black guys who were having a donut at the counter immediately got up and left. The other waitress told me the motorcycle gangs HATE blacks.
That's all I know about it.