Police respond to report of drunk customer at service station seeking repiars to vehicle. Police speak to employees/manager but cannot determine whether owner or companion drove truck to garage or whether companion is intoxicated. Police allow truck to leave service station but cannot see who is driving truck. SPOT check of registration/plate discloses registered owner suspended for DWI. Police stop truck without observing erratic operation. Companion/driver arrested for DWI. Defense files Motion to Suppress alleging stop/seizure of truck was made wihout legal basis. DWI charge dismissed prior to trial.