Partial filling controls

Had a customer come in today looking for his Adderall and of course we didn’t have it (this particular strength is on a back order for us) so he asks if we have any and if he could get what we have. So when we explain to him that the rest of the script would be void after the partial and he would have to get a new script for the rest he gets all agitated and kept asking why (after us explaining it multiple times but we were going in circles at this point) so he walked away and we just assumed he would try to find it elsewhere, well of course he comes back about 10 minutes later with a google result saying its legal in our state if the remaining is filled within 72 hours which doesn’t matter cause we won’t be receiving in that time frame anyway. But we had to explain to this man over and over again that no matter what our system will not let us partial this drug no matter the state law and he kept repeating that state law trumps our system and we legally have to follow these laws and how unbelievable we are to deny him such an important drug (while insisting he is not a crazy addict) anyway he of course wanted to get corporate involved in order to inform them of not complying with the laws. This is the second retail chain ive worked for and ive never had the ability to partial a control. Anyone else experience madness like this? Or are there any pharmacys that do indeed partial certain controls?