A straightforward off-track reset - bent bracket, maybe a roller or two - runs under an hour once the tech is on site. If the track section is bent and needs swapping, add time for that, plus checking that the opener's travel limits still line up once the door is back on the rail.
The variable isn't the fix itself, it's getting out to San Juan. The company runs from McAllen, about 6 miles away, so the drive isn't long, but it's not a walk-in shop either - there's no local branch sitting around the corner. Scheduling the call ahead of time, rather than expecting a same-hour drop-in, gets the job done faster in practice.