Taco Cabana review: poor customer service and very slow service

We went to taco cabana on our lunch break and ordered. Our order was taken at exactly 1:06pm and it was 3 pk flautas and a fajita taco combo (small and simple).
But come to find out that the 3 surrounding tables by ours were all sitting there before us and all without food. A lady and her elderly mother were there and told us we've been here 45 minutes and no food yet, the two gentlemen next to us were there 30 minutes and one of them was an airline pilot (in uniform and in a hurry). So everyone around us kept on looking at each other wondering where their food was, including us and after 35 minutes for us then we went to food pick up area and asked. An older lady went on to make our food and handed it to us right there and then, but the pilot and other man...no food yet. The manager was called out to the lobby by us and 2 gentlemen and he never came out. There was alot of employees but I'm assuming all slow. Our BMW dealership always orders food from this Taco Cabana but the bad slow customer service has gotten worse. It needs to get addressed and that counter person, Julio sure has an attitude (with us and with the 2 gentlemen next to us just because we asked for our food). If he's not happy then quit. As for the manager, a suggestion to always come out and face the customers, whether we are mad or happy. Very vey upset and mostly disappointed with this particular TC!