Last night had to make an emergency pet run to the animal care center on 41st. Got on I-44 @ 33rd W. Ave and immediately ran into one TPD unit parked sideways on the shoulder. Then another TPD unit, sideways again at the east end of the ARB @ Riverside. Another unit @ the Yale overpass. Then as I got off @ 41st, OHP rolls by southbound on Sheridan and another OHP unit has someone stopped further down 41st. On the way home it's the same story, OHP on the city streets and TPD on I-44 in several locations. I was thinking TPD was watching for someone but I never heard of anything on the main sides. Is this normal nighttime activity?