The conversion-window fit
A DUI defense ad in a rideshare at 1 a.m. is in front of the prospect at the moment the case is forming. The captive in-vehicle screen carries sustained attention for the duration of the trip — meaningfully different from a banner the prospect scrolls past. Personal injury overlap matters here too: DUI-adjacent cases like single-vehicle accidents, slip-and-fall after bar exit, and post-bar premises liability all originate in the same window.
Daypart strategy
Friday and Saturday 10 p.m. – 2 a.m. is the primary daypart for both DUI defense and PI rideshare campaigns. Sunday late-night and Thursday late-night carry secondary weight in markets with strong Thursday nightlife (Boston/Cambridge college market is the classic example).
Compliance
State bar association rules govern lawyer advertising — Arizona ER 7.2, Massachusetts RPC 7.2, Illinois Supreme Court Rule 7.2, etc. Disclaimer language and attorney identification rules apply. The rideshare in-vehicle format accommodates the disclaimer copy without compromising the spot.