So I am Driver 26 of 27 at my center. And naturally after peak we are running really light and have 7 or 8 guys on call now and I have been off more than 10 days so I worked preload last week (I only have enough seniority to displace one shift, night shift all has more seniority than I do, so I get 17.5 hours a week), but last night they text me to call at 4:30 AM and the SUP said they had no work for me this morning, I asked if I was driving and he said he doesn't know I should call the on road sup, of course he doesn't answer at 4:30 AM. If I call at 7 for driving and end up not working, am I just SOL for the day?