Them border guards can get grumpy when you only cross border for a short time. Buddy was in the states for 45 minutes to pick up a piece of farm machinery. Border patrol wasnt buying it. Boss was following the semi and had all the paperwork but still-held them up for a while.
Just drive to the southern border, it’s wide open for all. And even if the guards happen to show up, they just let you in without any need for paperwork anyway