I didn't meet anyone that I would qualify as a guide. After exiting immigration I quickly proceeded to the taxi area. The guys were immediately trying to hustle me, even before I exited the building. I refused to even acknowledge their game and walked to the taxi area to the left of the exit. I agreed to $25 U.S. for the ride upfront. It took about 30 minutes to reach Boca Chica. Because he drove me around the town to tell me about places to go & not to go, so I gave him an extra $5.
I mainly went to the Gemandi club because two of the girls were genuinely nice, without trying to get you to by them drinks.