I'm guessing maybe the voltage on the battery has dipped after a week on vacation - would be interested after a long drive if it magically started working again on restart -

If yours is an 11 I guarantee the original battery is in there and for the amount of electronics on these cars I'd say 6 years is damn good lifespan and look for replacement soon.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards