TexasCHLforum.com

The odds are stacked in favor of alcohol playing at least an ancillary part in a late-night traffic stop. Most church choir practices have been over a for a while by the time 3am or 4am rolls around. Of course, as I type this I remember that I've signed up for adoration chappel tomorrow at 2am....

Depending on the part of town, a Terry stop could be justified by just being on the property at 4am (presumably outside of normal operating hours). Especially since the OP didn't drive into one of the car wash stalls & instead drove to the back.