so the police have asked you to remain at a DUI checkpoint for over 45 minutes now what do you do that is an excessive amount of time but it depends on what kind of probable cause they have the police are only allowed to stop you at a DUI checkpoint to determine if they can quickly gather Reasonable Suspicion or probable cause of a crime if they get probable cause then they can go to the next step and ask you out of the car and ask you to perform a few tests to make sure it's okay for you to drive never fall for that trick never take any tests and never answer any questions so can I call my lawyer while I'm at the checkpoint if they allow you the time to do so and you have his number and you can get him on his cell phone then absolutely call him but most likely the police are not going to allow you to do that while on this DUI checkpoint stop