Yes, that one. I go there frequently both with work, and taken the family twice in the past year, and one of the things people seem not to understand is that Cancun TOWN is NOT Cancun Hotel Zone. They are very different. Google Earth is your friend. If you want to go into town and wander around, you can, the bus is $1 each way, which will leave you a few bucks for a drug deal. However, half the drug deals are traps, so make sure you have a decently corrupt Mexican lawyer on speed dial if you want to play that game.
The Hotel Zone is one of the largest revenue generators in Mexico and Mexican Authorities are not about to lose it over a few dime bags. Additionally, you do know that Spring Break is about 1 month of the year, right?