Yes, my band is definitely tighter in the morning...and sometimes I have to be out of bed and active for an hour before I can contemplate breakfast. Sipping a hot/warm drink does seem to help me.
This is a learning curve, and I've discovered that essentially my band has a mind of it's own. Some days I can tolerate cool water in the morning, other days I can't. A food well tolerated for months will suddenly create issues for me and goes off my list of tolerated foods.
Be careful with dry foods such as crackers...they are notorious for causing stuck episodes. After any event, such as a stuck episode or fill, it is best to follow your medical team's instructions...my surgeon advises me to stay on liquids for 2 days, and only soft foods for an additional day.