caffeinated beverages and energy drinks will keep you awake while driving. the answer is false. >> caffeine may be a short fix, but the best thing you can do is plan ahead, get that good sleep before you start driving or find an alternative like a ride share or friend to drive for you. >> experts say tired drivers experience something called microsleeps. most of us call it spacing out. no amount of caffeine can stop it. monday morning in union town, pennsylvania, co-workers casey and kevin are out on a delivery when they spot a white suv driving erratically. >> still swerving. all along the road. >> my first initial thoughts that i had was that i hope that she's not under the influence of anything and if she is, i hope she pulls over. i actually got my phone out and started recording because it just made me really nervous and i wanted to get it on camera in case anything bad happened. >> i don't know if they're drunk