Where were the cops and where was the town?
Usually in a biker film the cops make an appearance. Yet these bikers are hanging around kind of menacingly for hours, and the cops never make an appearance. And besides the angry dad and the offended waitress, the whole town was pretty accommodating to group of bikers. The garage/gas station guy let the one biker basically use his shop unsupervised.
And where was the rest of the town? They had a pretty nice motel and lounge setup for a place that looked like no more than some rural crossroads in the middle of farm country.