anyone going to Potrero Chico this Feb 25th or knows about buses form Monterrey?

I have some questions about the bus from Monterrey to Hidalgo: price for the ticket, and what is the schedule like? How late buses are riding? I will arrive to Monterrey at 4:16pm on the feb 25th, and I wonder if I will make it before last bus departs.
thanks
Luk
Update: ok so bus from the airport to bus station in Monterrey: 80 pesos; from Monterrey to Hidalgo 20 pesos. They run on Sat till around 10pm I was told.La Mina buses.