I am not getting out!

Yesterday afternoon I took Toby for a walk and on the way home stopped at the grocery store. For some reason lately, Toby doesn't want to get out of the van when we get home. I put everything away and left the door open but he wouldn't budge. He stayed in the van for 20 minutes before I could finally coax him out. Toby loves to go places. I think he feels that if he stays in the van, the next time I leave he will be sure to go and not be left at home.