If in fact there was a visit to this car wash, then there is a very good possibility that LE has another source of video. On the exit side of the carwash, where all cars exit there is a bank. The banks parking lot, although elevated, borders the alley that cars have to drive down to exit. In that parking lot there is a drive up window and a drive up ATM. I would think that the bank would have exterior cameras that with wide angle could have visual on that alley.